131033404 has 12 divisors (see below), whose sum is σ = 236705728. Its totient is φ = 63403200.

The previous prime is 131033401. The next prime is 131033459. The reversal of 131033404 is 404330131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131033401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528237 + ... + 528484.

Almost surely, 2^131033404 is an apocalyptic number.

It is an amenable number.

131033404 is a deficient number, since it is larger than the sum of its proper divisors (105672324).

131033404 is a wasteful number, since it uses less digits than its factorization.

131033404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056756 (or 1056754 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 131033404 is about 11446.9823097618. The cubic root of 131033404 is about 507.9184722535.

Adding to 131033404 its reverse (404330131), we get a palindrome (535363535).

The spelling of 131033404 in words is "one hundred thirty-one million, thirty-three thousand, four hundred four".