131169871 has 8 divisors (see below), whose sum is σ = 155077920. Its totient is φ = 108554208.

The previous prime is 131169833. The next prime is 131169877. The reversal of 131169871 is 178961131.

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

It is not a de Polignac number, because 131169871 - 2⁷ = 131169743 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131169871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131169877) 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, 322876 + ... + 323281.

It is an arithmetic number, because the mean of its divisors is an integer number (19384740).

Almost surely, 2^131169871 is an apocalyptic number.

131169871 is a deficient number, since it is larger than the sum of its proper divisors (23908049).

131169871 is an equidigital number, since it uses as much as digits as its factorization.

131169871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646193.

The product of its digits is 9072, while the sum is 37.

The square root of 131169871 is about 11452.9415872081. The cubic root of 131169871 is about 508.0947378956.

The spelling of 131169871 in words is "one hundred thirty-one million, one hundred sixty-nine thousand, eight hundred seventy-one".