251312125214 has 16 divisors (see below), whose sum is σ = 389079244800. Its totient is φ = 121682618904.

The previous prime is 251312125153. The next prime is 251312125231. The reversal of 251312125214 is 412521213152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15885854 + ... + 15901665.

It is an arithmetic number, because the mean of its divisors is an integer number (24317452800).

Almost surely, 2^251312125214 is an apocalyptic number.

251312125214 is a deficient number, since it is larger than the sum of its proper divisors (137767119586).

251312125214 is a wasteful number, since it uses less digits than its factorization.

251312125214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31787647.

The product of its digits is 4800, while the sum is 29.

Adding to 251312125214 its reverse (412521213152), we get a palindrome (663833338366).

The spelling of 251312125214 in words is "two hundred fifty-one billion, three hundred twelve million, one hundred twenty-five thousand, two hundred fourteen".