455813531 has 2 divisors, whose sum is σ = 455813532. Its totient is φ = 455813530.

The previous prime is 455813521. The next prime is 455813543. The reversal of 455813531 is 135318554.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-455813531 is a prime.

It is a super-2 number, since 2×455813531² = 415531950085375922, 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 = 455813491 and 455813500.

It is not a weakly prime, because it can be changed into another prime (455813521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227906765 + 227906766.

It is an arithmetic number, because the mean of its divisors is an integer number (227906766).

Almost surely, 2^455813531 is an apocalyptic number.

455813531 is a deficient number, since it is larger than the sum of its proper divisors (1).

455813531 is an equidigital number, since it uses as much as digits as its factorization.

455813531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36000, while the sum is 35.

The square root of 455813531 is about 21349.7899521283. The cubic root of 455813531 is about 769.5952958463.

The spelling of 455813531 in words is "four hundred fifty-five million, eight hundred thirteen thousand, five hundred thirty-one".