251574541161231 has 8 divisors (see below), whose sum is σ = 337285941005104. Its totient is φ = 166789751045760.

The previous prime is 251574541161143. The next prime is 251574541161241. The reversal of 251574541161231 is 132161145475152.

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

It is not a de Polignac number, because 251574541161231 - 2³⁸ = 251299663254287 is a prime.

It is a super-2 number, since 2×251574541161231² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (251574541161241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231652431466 + ... + 231652432551.

It is an arithmetic number, because the mean of its divisors is an integer number (42160742625638).

Almost surely, 2^{251574541161231} is an apocalyptic number.

251574541161231 is a deficient number, since it is larger than the sum of its proper divisors (85711399843873).

251574541161231 is a wasteful number, since it uses less digits than its factorization.

251574541161231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463304864201.

The product of its digits is 1008000, while the sum is 48.

The spelling of 251574541161231 in words is "two hundred fifty-one trillion, five hundred seventy-four billion, five hundred forty-one million, one hundred sixty-one thousand, two hundred thirty-one".