564312131 has 4 divisors (see below), whose sum is σ = 583771200. Its totient is φ = 544853064.

The previous prime is 564312109. The next prime is 564312137. The reversal of 564312131 is 131213465.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131213465 = 5 ⋅26242693.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-564312131 is a prime.

It is a super-2 number, since 2×564312131² = 636896362387522322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 564312131.

It is not an unprimeable number, because it can be changed into a prime (564312137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9729491 + ... + 9729548.

It is an arithmetic number, because the mean of its divisors is an integer number (145942800).

Almost surely, 2^564312131 is an apocalyptic number.

564312131 is a deficient number, since it is larger than the sum of its proper divisors (19459069).

564312131 is a wasteful number, since it uses less digits than its factorization.

564312131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19459068.

The product of its digits is 2160, while the sum is 26.

The square root of 564312131 is about 23755.2548081472. The cubic root of 564312131 is about 826.3673101144.

Adding to 564312131 its reverse (131213465), we get a palindrome (695525596).

The spelling of 564312131 in words is "five hundred sixty-four million, three hundred twelve thousand, one hundred thirty-one".