131085404 has 12 divisors (see below), whose sum is σ = 229483128. Its totient is φ = 65518800.

The previous prime is 131085403. The next prime is 131085431. The reversal of 131085404 is 404580131.

131085404 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131085403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13199 + ... + 20889.

It is an arithmetic number, because the mean of its divisors is an integer number (19123594).

Almost surely, 2^131085404 is an apocalyptic number.

It is an amenable number.

131085404 is a deficient number, since it is larger than the sum of its proper divisors (98397724).

131085404 is a wasteful number, since it uses less digits than its factorization.

131085404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11956 (or 11954 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 131085404 is about 11449.2534254422. The cubic root of 131085404 is about 507.9856517327.

The spelling of 131085404 in words is "one hundred thirty-one million, eighty-five thousand, four hundred four".