12956459 has 8 divisors (see below), whose sum is σ = 13485120. Its totient is φ = 12438216.

The previous prime is 12956453. The next prime is 12956477. The reversal of 12956459 is 95465921.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12956459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12956453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17 + ... + 5090.

It is an arithmetic number, because the mean of its divisors is an integer number (1685640).

Almost surely, 2^12956459 is an apocalyptic number.

12956459 is a deficient number, since it is larger than the sum of its proper divisors (528661).

12956459 is an equidigital number, since it uses as much as digits as its factorization.

12956459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5209.

The product of its digits is 97200, while the sum is 41.

The square root of 12956459 is about 3599.5081608464. The cubic root of 12956459 is about 234.8706637031.

The spelling of 12956459 in words is "twelve million, nine hundred fifty-six thousand, four hundred fifty-nine".