609316531 has 2 divisors, whose sum is σ = 609316532. Its totient is φ = 609316530.

The previous prime is 609316523. The next prime is 609316613. The reversal of 609316531 is 135613906.

609316531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 609316531 - 2³ = 609316523 is a prime.

It is a super-2 number, since 2×609316531² = 742533269899747922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (609316511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304658265 + 304658266.

It is an arithmetic number, because the mean of its divisors is an integer number (304658266).

Almost surely, 2^609316531 is an apocalyptic number.

609316531 is a deficient number, since it is larger than the sum of its proper divisors (1).

609316531 is an equidigital number, since it uses as much as digits as its factorization.

609316531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 609316531 is about 24684.3377670943. The cubic root of 609316531 is about 847.7757445711.

The spelling of 609316531 in words is "six hundred nine million, three hundred sixteen thousand, five hundred thirty-one".