531104131 has 4 divisors (see below), whose sum is σ = 559057000. Its totient is φ = 503151264.

The previous prime is 531104107. The next prime is 531104141. The reversal of 531104131 is 131401135.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 531104131 - 2²⁵ = 497549699 is a prime.

It is a super-2 number, since 2×531104131² = 564143195930530322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 27952849 = 531104131 / (5 + 3 + 1 + 1 + 0 + 4 + 1 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 531104099 and 531104108.

It is not an unprimeable number, because it can be changed into a prime (531104141) 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, 13976406 + ... + 13976443.

It is an arithmetic number, because the mean of its divisors is an integer number (139764250).

Almost surely, 2^531104131 is an apocalyptic number.

531104131 is a deficient number, since it is larger than the sum of its proper divisors (27952869).

531104131 is a wasteful number, since it uses less digits than its factorization.

531104131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27952868.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 531104131 is about 23045.6965830933. The cubic root of 531104131 is about 809.8288166422.

Adding to 531104131 its reverse (131401135), we get a palindrome (662505266).

The spelling of 531104131 in words is "five hundred thirty-one million, one hundred four thousand, one hundred thirty-one".