251414868 has 12 divisors (see below), whose sum is σ = 586634720. Its totient is φ = 83804952.

The previous prime is 251414843. The next prime is 251414869. The reversal of 251414868 is 868414152.

251414868 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251414869) 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, 10475608 + ... + 10475631.

Almost surely, 2^251414868 is an apocalyptic number.

It is an amenable number.

251414868 is an abundant number, since it is smaller than the sum of its proper divisors (335219852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

251414868 is a wasteful number, since it uses less digits than its factorization.

251414868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20951246 (or 20951244 counting only the distinct ones).

The product of its digits is 61440, while the sum is 39.

The square root of 251414868 is about 15856.0672299281. The cubic root of 251414868 is about 631.1467046875.

It can be divided in two parts, 2 and 51414868, that added together give a triangular number (51414870 = T₁₀₁₄₀).

The spelling of 251414868 in words is "two hundred fifty-one million, four hundred fourteen thousand, eight hundred sixty-eight".