564516131 has 2 divisors, whose sum is σ = 564516132. Its totient is φ = 564516130.

The previous prime is 564516119. The next prime is 564516133. The reversal of 564516131 is 131615465.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-564516131 is a prime.

It is a super-2 number, since 2×564516131² = 637356924318418322, which contains 22 as substring.

Together with 564516133, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (564516133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282258065 + 282258066.

It is an arithmetic number, because the mean of its divisors is an integer number (282258066).

Almost surely, 2^564516131 is an apocalyptic number.

564516131 is a deficient number, since it is larger than the sum of its proper divisors (1).

564516131 is an equidigital number, since it uses as much as digits as its factorization.

564516131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 32.

The square root of 564516131 is about 23759.5482069841. The cubic root of 564516131 is about 826.4668759470.

The spelling of 564516131 in words is "five hundred sixty-four million, five hundred sixteen thousand, one hundred thirty-one".