131503087 has 8 divisors (see below), whose sum is σ = 133065504. Its totient is φ = 129946368.

The previous prime is 131503063. The next prime is 131503091. The reversal of 131503087 is 780305131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131503087 is a prime.

It is a super-4 number, since 4×131503087⁴ (a number of 34 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131503027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60003 + ... + 62155.

It is an arithmetic number, because the mean of its divisors is an integer number (16633188).

Almost surely, 2^131503087 is an apocalyptic number.

131503087 is a deficient number, since it is larger than the sum of its proper divisors (1562417).

131503087 is a wasteful number, since it uses less digits than its factorization.

131503087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2849.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 131503087 is about 11467.4795399861. The cubic root of 131503087 is about 508.5246184583.

The spelling of 131503087 in words is "one hundred thirty-one million, five hundred three thousand, eighty-seven".