252445131 has 24 divisors (see below), whose sum is σ = 381089280. Its totient is φ = 160873776.

The previous prime is 252445099. The next prime is 252445133. The reversal of 252445131 is 131544252.

252445131 is a `hidden beast` number, since 2 + 524 + 4 + 5 + 131 = 666.

It is not a de Polignac number, because 252445131 - 2⁵ = 252445099 is a prime.

It is a super-2 number, since 2×252445131² = 127457088331214322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 252445095 and 252445104.

It is not an unprimeable number, because it can be changed into a prime (252445133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11250 + ... + 25128.

It is an arithmetic number, because the mean of its divisors is an integer number (15878720).

Almost surely, 2^252445131 is an apocalyptic number.

252445131 is a deficient number, since it is larger than the sum of its proper divisors (128644149).

252445131 is a wasteful number, since it uses less digits than its factorization.

252445131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13975 (or 13972 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 252445131 is about 15888.5219891593. The cubic root of 252445131 is about 632.0076467523.

Adding to 252445131 its reverse (131544252), we get a palindrome (383989383).

The spelling of 252445131 in words is "two hundred fifty-two million, four hundred forty-five thousand, one hundred thirty-one".