12957495 has 8 divisors (see below), whose sum is σ = 20732016. Its totient is φ = 6910656.

The previous prime is 12957481. The next prime is 12957509. The reversal of 12957495 is 59475921.

It is an interprime number because it is at equal distance from previous prime (12957481) and next prime (12957509).

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

It is not a de Polignac number, because 12957495 - 2⁵ = 12957463 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431902 + ... + 431931.

It is an arithmetic number, because the mean of its divisors is an integer number (2591502).

Almost surely, 2^12957495 is an apocalyptic number.

12957495 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12957495 is a deficient number, since it is larger than the sum of its proper divisors (7774521).

12957495 is an equidigital number, since it uses as much as digits as its factorization.

12957495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863841.

The product of its digits is 113400, while the sum is 42.

The square root of 12957495 is about 3599.6520665198. The cubic root of 12957495 is about 234.8769236316.

The spelling of 12957495 in words is "twelve million, nine hundred fifty-seven thousand, four hundred ninety-five".