251252113 has 8 divisors (see below), whose sum is σ = 287251328. Its totient is φ = 215279424.

The previous prime is 251252063. The next prime is 251252119. The reversal of 251252113 is 311252152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 251252113 - 2²⁵ = 217697681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (251252119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21820 + ... + 31282.

It is an arithmetic number, because the mean of its divisors is an integer number (35906416).

Almost surely, 2^251252113 is an apocalyptic number.

It is an amenable number.

251252113 is a deficient number, since it is larger than the sum of its proper divisors (35999215).

251252113 is an equidigital number, since it uses as much as digits as its factorization.

251252113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13263.

The product of its digits is 600, while the sum is 22.

The square root of 251252113 is about 15850.9341365107. The cubic root of 251252113 is about 631.0104830223.

The spelling of 251252113 in words is "two hundred fifty-one million, two hundred fifty-two thousand, one hundred thirteen".