251412315 has 64 divisors (see below), whose sum is σ = 506373120. Its totient is φ = 103472640.

The previous prime is 251412311. The next prime is 251412323. The reversal of 251412315 is 513214152.

It is a happy number.

It is not a de Polignac number, because 251412315 - 2² = 251412311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (251412311) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 124897 + ... + 126893.

It is an arithmetic number, because the mean of its divisors is an integer number (7912080).

Almost surely, 2^251412315 is an apocalyptic number.

251412315 is an abundant number, since it is smaller than the sum of its proper divisors (254960805).

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

251412315 is a wasteful number, since it uses less digits than its factorization.

251412315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132.

The product of its digits is 1200, while the sum is 24.

The square root of 251412315 is about 15855.9867242629. The cubic root of 251412315 is about 631.1445683474.

Adding to 251412315 its reverse (513214152), we get a palindrome (764626467).

The spelling of 251412315 in words is "two hundred fifty-one million, four hundred twelve thousand, three hundred fifteen".