257068130 has 24 divisors (see below), whose sum is σ = 508614876. Its totient is φ = 93478880.

The previous prime is 257068117. The next prime is 257068153. The reversal of 257068130 is 31860752.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 256864729 + 203401 = 16027^2 + 451^2 .

It is a Curzon number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 105017 + ... + 107436.

Almost surely, 2^257068130 is an apocalyptic number.

257068130 is a deficient number, since it is larger than the sum of its proper divisors (251546746).

257068130 is a wasteful number, since it uses less digits than its factorization.

257068130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212482 (or 212471 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 257068130 is about 16033.3443173906. The cubic root of 257068130 is about 635.8422947323.

The spelling of 257068130 in words is "two hundred fifty-seven million, sixty-eight thousand, one hundred thirty".