131506886 has 32 divisors (see below), whose sum is σ = 234446400. Its totient is φ = 55281408.

The previous prime is 131506873. The next prime is 131506889. The reversal of 131506886 is 688605131.

It is a happy number.

It is a super-2 number, since 2×131506886² = 34588122130833992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131506889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34550 + ... + 38166.

It is an arithmetic number, because the mean of its divisors is an integer number (7326450).

Almost surely, 2^131506886 is an apocalyptic number.

131506886 is a deficient number, since it is larger than the sum of its proper divisors (102939514).

131506886 is an equidigital number, since it uses as much as digits as its factorization.

131506886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3693 (or 3679 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 131506886 is about 11467.6451811172. The cubic root of 131506886 is about 508.5295153431.

The spelling of 131506886 in words is "one hundred thirty-one million, five hundred six thousand, eight hundred eighty-six".