456531931 has 2 divisors, whose sum is σ = 456531932. Its totient is φ = 456531930.

The previous prime is 456531913. The next prime is 456531941. The reversal of 456531931 is 139135654.

It is a happy number.

Together with previous prime (456531913) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 456531931 - 2¹⁷ = 456400859 is a prime.

It is a super-2 number, since 2×456531931² = 416842808045177522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (456531941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228265965 + 228265966.

It is an arithmetic number, because the mean of its divisors is an integer number (228265966).

Almost surely, 2^456531931 is an apocalyptic number.

456531931 is a deficient number, since it is larger than the sum of its proper divisors (1).

456531931 is an equidigital number, since it uses as much as digits as its factorization.

456531931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48600, while the sum is 37.

The square root of 456531931 is about 21366.6078496330. The cubic root of 456531931 is about 769.9993989988. Note that the first 3 decimals are identical.

The spelling of 456531931 in words is "four hundred fifty-six million, five hundred thirty-one thousand, nine hundred thirty-one".