464521531 has 2 divisors, whose sum is σ = 464521532. Its totient is φ = 464521530.

The previous prime is 464521487. The next prime is 464521537. The reversal of 464521531 is 135125464.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 464521531 - 2²⁵ = 430967099 is a prime.

It is a super-2 number, since 2×464521531² = 431560505525167922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 464521493 and 464521502.

It is not a weakly prime, because it can be changed into another prime (464521537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232260765 + 232260766.

It is an arithmetic number, because the mean of its divisors is an integer number (232260766).

Almost surely, 2^464521531 is an apocalyptic number.

464521531 is a deficient number, since it is larger than the sum of its proper divisors (1).

464521531 is an equidigital number, since it uses as much as digits as its factorization.

464521531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 31.

The square root of 464521531 is about 21552.7615631965. The cubic root of 464521531 is about 774.4652744293.

Adding to 464521531 its reverse (135125464), we get a palindrome (599646995).

The spelling of 464521531 in words is "four hundred sixty-four million, five hundred twenty-one thousand, five hundred thirty-one".