531361131 has 8 divisors (see below), whose sum is σ = 809693184. Its totient is φ = 303634920.

The previous prime is 531361109. The next prime is 531361133. The reversal of 531361131 is 131163135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 531361131 - 2¹⁸ = 531098987 is a prime.

It is a super-2 number, since 2×531361131² = 564689303075198322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (531361133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12651435 + ... + 12651476.

It is an arithmetic number, because the mean of its divisors is an integer number (101211648).

Almost surely, 2^531361131 is an apocalyptic number.

531361131 is a deficient number, since it is larger than the sum of its proper divisors (278332053).

531361131 is a wasteful number, since it uses less digits than its factorization.

531361131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25302921.

The product of its digits is 810, while the sum is 24.

The square root of 531361131 is about 23051.2717870403. The cubic root of 531361131 is about 809.9594203112.

The spelling of 531361131 in words is "five hundred thirty-one million, three hundred sixty-one thousand, one hundred thirty-one".