258072931 has 2 divisors, whose sum is σ = 258072932. Its totient is φ = 258072930.

The previous prime is 258072907. The next prime is 258072961. The reversal of 258072931 is 139270852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 258072931 - 2¹⁵ = 258040163 is a prime.

It is a super-2 number, since 2×258072931² = 133203275429861522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (258072961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129036465 + 129036466.

It is an arithmetic number, because the mean of its divisors is an integer number (129036466).

Almost surely, 2^258072931 is an apocalyptic number.

258072931 is a deficient number, since it is larger than the sum of its proper divisors (1).

258072931 is an equidigital number, since it uses as much as digits as its factorization.

258072931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 258072931 is about 16064.6484866616. The cubic root of 258072931 is about 636.6696556362.

The spelling of 258072931 in words is "two hundred fifty-eight million, seventy-two thousand, nine hundred thirty-one".