131504552 has 16 divisors (see below), whose sum is σ = 246896160. Its totient is φ = 65665584.

The previous prime is 131504551. The next prime is 131504557. The reversal of 131504552 is 255405131.

It is not an unprimeable number, because it can be changed into a prime (131504551) 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, 4148 + ... + 16739.

It is an arithmetic number, because the mean of its divisors is an integer number (15431010).

Almost surely, 2^131504552 is an apocalyptic number.

It is an amenable number.

131504552 is a deficient number, since it is larger than the sum of its proper divisors (115391608).

131504552 is a wasteful number, since it uses less digits than its factorization.

131504552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21680 (or 21676 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 131504552 is about 11467.5434160940. The cubic root of 131504552 is about 508.5265068443.

Adding to 131504552 its reverse (255405131), we get a palindrome (386909683).

The spelling of 131504552 in words is "one hundred thirty-one million, five hundred four thousand, five hundred fifty-two".