566121131 has 16 divisors (see below), whose sum is σ = 632914560. Its totient is φ = 503222400.

The previous prime is 566121113. The next prime is 566121133. The reversal of 566121131 is 131121665.

It is a cyclic number.

It is not a de Polignac number, because 566121131 - 2¹⁸ = 565858987 is a prime.

It is a super-2 number, since 2×566121131² = 640986269929438322, 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 566121131.

It is not an unprimeable number, because it can be changed into a prime (566121133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109556 + ... + 114606.

It is an arithmetic number, because the mean of its divisors is an integer number (39557160).

Almost surely, 2^566121131 is an apocalyptic number.

566121131 is a deficient number, since it is larger than the sum of its proper divisors (66793429).

566121131 is a wasteful number, since it uses less digits than its factorization.

566121131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5434.

The product of its digits is 1080, while the sum is 26.

The square root of 566121131 is about 23793.3001283975. The cubic root of 566121131 is about 827.2493892781.

Adding to 566121131 its reverse (131121665), we get a palindrome (697242796).

The spelling of 566121131 in words is "five hundred sixty-six million, one hundred twenty-one thousand, one hundred thirty-one".