255718131 has 16 divisors (see below), whose sum is σ = 380016000. Its totient is φ = 152005248.

The previous prime is 255718129. The next prime is 255718153. The reversal of 255718131 is 131817552.

It is not a de Polignac number, because 255718131 - 2¹ = 255718129 is a prime.

It is a super-2 number, since 2×255718131² = 130783525044266322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 255718092 and 255718101.

It is not an unprimeable number, because it can be changed into a prime (255718171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130981 + ... + 132918.

It is an arithmetic number, because the mean of its divisors is an integer number (23751000).

Almost surely, 2^255718131 is an apocalyptic number.

255718131 is a deficient number, since it is larger than the sum of its proper divisors (124297869).

255718131 is a wasteful number, since it uses less digits than its factorization.

255718131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263938.

The product of its digits is 8400, while the sum is 33.

The square root of 255718131 is about 15991.1891677886. The cubic root of 255718131 is about 634.7272939824.

The spelling of 255718131 in words is "two hundred fifty-five million, seven hundred eighteen thousand, one hundred thirty-one".