131500687 has 8 divisors (see below), whose sum is σ = 133266672. Its totient is φ = 129744000.

The previous prime is 131500679. The next prime is 131500693. The reversal of 131500687 is 786005131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131500687 - 2³ = 131500679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131500697) 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, 28887 + ... + 33127.

It is an arithmetic number, because the mean of its divisors is an integer number (16658334).

Almost surely, 2^131500687 is an apocalyptic number.

131500687 is a deficient number, since it is larger than the sum of its proper divisors (1765985).

131500687 is a wasteful number, since it uses less digits than its factorization.

131500687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4649.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 131500687 is about 11467.3748957641. The cubic root of 131500687 is about 508.5215248262.

The spelling of 131500687 in words is "one hundred thirty-one million, five hundred thousand, six hundred eighty-seven".