252205131 has 4 divisors (see below), whose sum is σ = 336273512. Its totient is φ = 168136752.

The previous prime is 252205123. The next prime is 252205133. The reversal of 252205131 is 131502252.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 252205131 - 2³ = 252205123 is a prime.

It is a super-2 number, since 2×252205131² = 127214856205454322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252205098 and 252205107.

It is not an unprimeable number, because it can be changed into a prime (252205133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42034186 + ... + 42034191.

It is an arithmetic number, because the mean of its divisors is an integer number (84068378).

Almost surely, 2^252205131 is an apocalyptic number.

252205131 is a deficient number, since it is larger than the sum of its proper divisors (84068381).

252205131 is an equidigital number, since it uses as much as digits as its factorization.

252205131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84068380.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 252205131 is about 15880.9675712785. The cubic root of 252205131 is about 631.8072996800.

Adding to 252205131 its reverse (131502252), we get a palindrome (383707383).

The spelling of 252205131 in words is "two hundred fifty-two million, two hundred five thousand, one hundred thirty-one".