251412135222125 has 16 divisors (see below), whose sum is σ = 321059143479360. Its totient is φ = 196452273099600.

The previous prime is 251412135222071. The next prime is 251412135222137. The reversal of 251412135222125 is 521222531214152.

It is not a de Polignac number, because 251412135222125 - 2³⁰ = 251411061480301 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23387169995 + ... + 23387180744.

It is an arithmetic number, because the mean of its divisors is an integer number (20066196467460).

Almost surely, 2^{251412135222125} is an apocalyptic number.

251412135222125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

251412135222125 is a deficient number, since it is larger than the sum of its proper divisors (69647008257235).

251412135222125 is an equidigital number, since it uses as much as digits as its factorization.

251412135222125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46774350797 (or 46774350787 counting only the distinct ones).

The product of its digits is 96000, while the sum is 38.

Adding to 251412135222125 its reverse (521222531214152), we get a palindrome (772634666436277).

The spelling of 251412135222125 in words is "two hundred fifty-one trillion, four hundred twelve billion, one hundred thirty-five million, two hundred twenty-two thousand, one hundred twenty-five".