451012531 has 2 divisors, whose sum is σ = 451012532. Its totient is φ = 451012530.

The previous prime is 451012489. The next prime is 451012547. The reversal of 451012531 is 135210154.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 451012531 - 2⁷ = 451012403 is a prime.

It is a super-2 number, since 2×451012531² = 406824606238051922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (451012561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225506265 + 225506266.

It is an arithmetic number, because the mean of its divisors is an integer number (225506266).

Almost surely, 2^451012531 is an apocalyptic number.

451012531 is the 9498-th centered decagonal number.

451012531 is a deficient number, since it is larger than the sum of its proper divisors (1).

451012531 is an equidigital number, since it uses as much as digits as its factorization.

451012531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 451012531 is about 21237.0556104183. The cubic root of 451012531 is about 766.8837515272.

Adding to 451012531 its reverse (135210154), we get a palindrome (586222685).

The spelling of 451012531 in words is "four hundred fifty-one million, twelve thousand, five hundred thirty-one".