131808284 has 6 divisors (see below), whose sum is σ = 230664504. Its totient is φ = 65904140.

The previous prime is 131808269. The next prime is 131808323. The reversal of 131808284 is 482808131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16476032 + ... + 16476039.

It is an arithmetic number, because the mean of its divisors is an integer number (38444084).

Almost surely, 2^131808284 is an apocalyptic number.

It is an amenable number.

131808284 is a deficient number, since it is larger than the sum of its proper divisors (98856220).

131808284 is a wasteful number, since it uses less digits than its factorization.

131808284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32952075 (or 32952073 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 131808284 is about 11480.7788934375. The cubic root of 131808284 is about 508.9177151310.

The spelling of 131808284 in words is "one hundred thirty-one million, eight hundred eight thousand, two hundred eighty-four".