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1372141 = 1499209
BaseRepresentation
bin101001110111111101101
32120201020001
411032333231
5322402031
645224301
714443261
oct5167755
92521201
101372141
11857a01
12562091
13390724
1427a0a1
151c1861
hex14efed

1372141 has 4 divisors (see below), whose sum is σ = 1381500. Its totient is φ = 1362784.

The previous prime is 1372139. The next prime is 1372171. The reversal of 1372141 is 1412731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1412731 = 8631637.

It can be written as a sum of positive squares in 2 ways, for example, as 184041 + 1188100 = 429^2 + 1090^2 .

It is a cyclic number.

It is not a de Polignac number, because 1372141 - 21 = 1372139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1372171) 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, 4456 + ... + 4753.

It is an arithmetic number, because the mean of its divisors is an integer number (345375).

21372141 is an apocalyptic number.

It is an amenable number.

1372141 is a deficient number, since it is larger than the sum of its proper divisors (9359).

1372141 is an equidigital number, since it uses as much as digits as its factorization.

1372141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9358.

The product of its digits is 168, while the sum is 19.

The square root of 1372141 is about 1171.3842238992. The cubic root of 1372141 is about 111.1218800303.

Adding to 1372141 its reverse (1412731), we get a palindrome (2784872).

It can be divided in two parts, 137 and 2141, that added together give a triangular number (2278 = T67).

The spelling of 1372141 in words is "one million, three hundred seventy-two thousand, one hundred forty-one".

Divisors: 1 149 9209 1372141