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1352540141 = 10211324721
BaseRepresentation
bin101000010011110…
…0001111111101101
310111021001011021022
41100213201333231
510232222241031
6342113343525
745342254501
oct12047417755
93437034238
101352540141
11634523477
12318b67ba5
131872a2614
14cb8ba301
157db1c97b
hex509e1fed

1352540141 has 4 divisors (see below), whose sum is σ = 1353865884. Its totient is φ = 1351214400.

The previous prime is 1352540117. The next prime is 1352540153. The reversal of 1352540141 is 1410452531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1410452531 = 12941108991.

It can be written as a sum of positive squares in 2 ways, for example, as 1026882025 + 325658116 = 32045^2 + 18046^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1352540141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1352540141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1352540171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661340 + ... + 663381.

It is an arithmetic number, because the mean of its divisors is an integer number (338466471).

Almost surely, 21352540141 is an apocalyptic number.

It is an amenable number.

1352540141 is a deficient number, since it is larger than the sum of its proper divisors (1325743).

1352540141 is a wasteful number, since it uses less digits than its factorization.

1352540141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325742.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1352540141 is about 36776.8968375528. The cubic root of 1352540141 is about 1105.9021974673.

Adding to 1352540141 its reverse (1410452531), we get a palindrome (2762992672).

The spelling of 1352540141 in words is "one billion, three hundred fifty-two million, five hundred forty thousand, one hundred forty-one".

Divisors: 1 1021 1324721 1352540141