131904871 has 8 divisors (see below), whose sum is σ = 150992384. Its totient is φ = 112878360.

The previous prime is 131904827. The next prime is 131904881. The reversal of 131904871 is 178409131.

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

It is not a de Polignac number, because 131904871 - 2⁷ = 131904743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131904811) 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, 10515 + ... + 19348.

It is an arithmetic number, because the mean of its divisors is an integer number (18874048).

Almost surely, 2^131904871 is an apocalyptic number.

131904871 is a deficient number, since it is larger than the sum of its proper divisors (19087513).

131904871 is an equidigital number, since it uses as much as digits as its factorization.

131904871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30501.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 131904871 is about 11484.9845885835. The cubic root of 131904871 is about 509.0419936971.

The spelling of 131904871 in words is "one hundred thirty-one million, nine hundred four thousand, eight hundred seventy-one".