252431873 has 2 divisors, whose sum is σ = 252431874. Its totient is φ = 252431872.

The previous prime is 252431869. The next prime is 252431941. The reversal of 252431873 is 378134252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221206129 + 31225744 = 14873^2 + 5588^2 .

It is a cyclic number.

It is not a de Polignac number, because 252431873 - 2² = 252431869 is a prime.

It is not a weakly prime, because it can be changed into another prime (252431833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126215936 + 126215937.

It is an arithmetic number, because the mean of its divisors is an integer number (126215937).

Almost surely, 2^252431873 is an apocalyptic number.

It is an amenable number.

252431873 is a deficient number, since it is larger than the sum of its proper divisors (1).

252431873 is an equidigital number, since it uses as much as digits as its factorization.

252431873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 35.

The square root of 252431873 is about 15888.1047642568. The cubic root of 252431873 is about 631.9965825604.

The spelling of 252431873 in words is "two hundred fifty-two million, four hundred thirty-one thousand, eight hundred seventy-three".