252645131 has 2 divisors, whose sum is σ = 252645132. Its totient is φ = 252645130.

The previous prime is 252645121. The next prime is 252645161. The reversal of 252645131 is 131546252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 252645131 - 2⁶ = 252645067 is a prime.

It is a super-2 number, since 2×252645131² = 127659124436014322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 252645094 and 252645103.

It is not a weakly prime, because it can be changed into another prime (252645121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126322565 + 126322566.

It is an arithmetic number, because the mean of its divisors is an integer number (126322566).

Almost surely, 2^252645131 is an apocalyptic number.

252645131 is a deficient number, since it is larger than the sum of its proper divisors (1).

252645131 is an equidigital number, since it uses as much as digits as its factorization.

252645131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 29.

The square root of 252645131 is about 15894.8145947035. The cubic root of 252645131 is about 632.1745056692.

The spelling of 252645131 in words is "two hundred fifty-two million, six hundred forty-five thousand, one hundred thirty-one".