257107912 has 16 divisors (see below), whose sum is σ = 482751360. Its totient is φ = 128374224.

The previous prime is 257107889. The next prime is 257107913. The reversal of 257107912 is 219701752.

It is a super-2 number, since 2×257107912² = 132208956825999488, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (257107913) 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, 16288 + ... + 27919.

It is an arithmetic number, because the mean of its divisors is an integer number (30171960).

Almost surely, 2^257107912 is an apocalyptic number.

It is an amenable number.

257107912 is a deficient number, since it is larger than the sum of its proper divisors (225643448).

257107912 is a wasteful number, since it uses less digits than its factorization.

257107912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44940 (or 44936 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 34.

The square root of 257107912 is about 16034.5848714583. The cubic root of 257107912 is about 635.8750924884.

The spelling of 257107912 in words is "two hundred fifty-seven million, one hundred seven thousand, nine hundred twelve".