512241931 has 2 divisors, whose sum is σ = 512241932. Its totient is φ = 512241930.

The previous prime is 512241911. The next prime is 512241941. The reversal of 512241931 is 139142215.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-512241931 is a prime.

It is a super-2 number, since 2×512241931² = 524783591749217522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 512241931.

It is not a weakly prime, because it can be changed into another prime (512241911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256120965 + 256120966.

It is an arithmetic number, because the mean of its divisors is an integer number (256120966).

Almost surely, 2^512241931 is an apocalyptic number.

512241931 is a deficient number, since it is larger than the sum of its proper divisors (1).

512241931 is an equidigital number, since it uses as much as digits as its factorization.

512241931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 28.

The square root of 512241931 is about 22632.7623369309. The cubic root of 512241931 is about 800.1259858876.

The spelling of 512241931 in words is "five hundred twelve million, two hundred forty-one thousand, nine hundred thirty-one".