131715284 has 6 divisors (see below), whose sum is σ = 230501754. Its totient is φ = 65857640.

The previous prime is 131715281. The next prime is 131715289. The reversal of 131715284 is 482517131.

It can be written as a sum of positive squares in only one way, i.e., 71031184 + 60684100 = 8428^2 + 7790^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 131715284.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131715281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16464407 + ... + 16464414.

It is an arithmetic number, because the mean of its divisors is an integer number (38416959).

Almost surely, 2^131715284 is an apocalyptic number.

It is an amenable number.

131715284 is a deficient number, since it is larger than the sum of its proper divisors (98786470).

131715284 is a wasteful number, since it uses less digits than its factorization.

131715284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32928825 (or 32928823 counting only the distinct ones).

The product of its digits is 6720, while the sum is 32.

The square root of 131715284 is about 11476.7279309043. The cubic root of 131715284 is about 508.7979945747.

The spelling of 131715284 in words is "one hundred thirty-one million, seven hundred fifteen thousand, two hundred eighty-four".