131234504 has 32 divisors (see below), whose sum is σ = 257472000. Its totient is φ = 62591232.

The previous prime is 131234503. The next prime is 131234531. The reversal of 131234504 is 405432131.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 131234504.

It is not an unprimeable number, because it can be changed into a prime (131234503) 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, 87392 + ... + 88880.

It is an arithmetic number, because the mean of its divisors is an integer number (8046000).

Almost surely, 2^131234504 is an apocalyptic number.

It is an amenable number.

131234504 is a deficient number, since it is larger than the sum of its proper divisors (126237496).

131234504 is a wasteful number, since it uses less digits than its factorization.

131234504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997 (or 1993 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 131234504 is about 11455.7629165412. The cubic root of 131234504 is about 508.1781775213.

Adding to 131234504 its reverse (405432131), we get a palindrome (536666635).

The spelling of 131234504 in words is "one hundred thirty-one million, two hundred thirty-four thousand, five hundred four".