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1340121 = 3587761
BaseRepresentation
bin101000111001011011001
32112002022010
411013023121
5320340441
644420133
714251026
oct5071331
92462263
101340121
11835942
12547649
1337bc93
1426c54d
151b7116
hex1472d9

1340121 has 8 divisors (see below), whose sum is σ = 1792224. Its totient is φ = 890720.

The previous prime is 1340113. The next prime is 1340149. The reversal of 1340121 is 1210431.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1340121 - 23 = 1340113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1340097 and 1340106.

It is not an unprimeable number, because it can be changed into a prime (1340021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1381 + ... + 2141.

It is an arithmetic number, because the mean of its divisors is an integer number (224028).

21340121 is an apocalyptic number.

It is an amenable number.

1340121 is a deficient number, since it is larger than the sum of its proper divisors (452103).

1340121 is an equidigital number, since it uses as much as digits as its factorization.

1340121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1351.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1340121 is about 1157.6359531390. The cubic root of 1340121 is about 110.2506954363.

Adding to 1340121 its reverse (1210431), we get a palindrome (2550552).

The spelling of 1340121 in words is "one million, three hundred forty thousand, one hundred twenty-one".

Divisors: 1 3 587 761 1761 2283 446707 1340121