257231314 has 4 divisors (see below), whose sum is σ = 385846974. Its totient is φ = 128615656.

The previous prime is 257231297. The next prime is 257231321. The reversal of 257231314 is 413132752.

257231314 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 254881225 + 2350089 = 15965^2 + 1533^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64307827 + ... + 64307830.

Almost surely, 2^257231314 is an apocalyptic number.

257231314 is a deficient number, since it is larger than the sum of its proper divisors (128615660).

257231314 is a wasteful number, since it uses less digits than its factorization.

257231314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128615659.

The product of its digits is 5040, while the sum is 28.

The square root of 257231314 is about 16038.4324046959. The cubic root of 257231314 is about 635.9768081545.

The spelling of 257231314 in words is "two hundred fifty-seven million, two hundred thirty-one thousand, three hundred fourteen".