257013118 has 4 divisors (see below), whose sum is σ = 385519680. Its totient is φ = 128506558.

The previous prime is 257013103. The next prime is 257013151. The reversal of 257013118 is 811310752.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64253278 + ... + 64253281.

It is an arithmetic number, because the mean of its divisors is an integer number (96379920).

Almost surely, 2^257013118 is an apocalyptic number.

257013118 is a deficient number, since it is larger than the sum of its proper divisors (128506562).

257013118 is a wasteful number, since it uses less digits than its factorization.

257013118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128506561.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 257013118 is about 16031.6286758395. The cubic root of 257013118 is about 635.7969352243.

The spelling of 257013118 in words is "two hundred fifty-seven million, thirteen thousand, one hundred eighteen".