131704881 has 32 divisors (see below), whose sum is σ = 219967488. Its totient is φ = 68096640.

The previous prime is 131704879. The next prime is 131704901. The reversal of 131704881 is 188407131.

It is not a de Polignac number, because 131704881 - 2¹ = 131704879 is a prime.

It is a super-2 number, since 2×131704881² = 34692351358448322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (131704801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52600 + ... + 55046.

It is an arithmetic number, because the mean of its divisors is an integer number (6873984).

Almost surely, 2^131704881 is an apocalyptic number.

131704881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131704881 is a deficient number, since it is larger than the sum of its proper divisors (88262607).

131704881 is a wasteful number, since it uses less digits than its factorization.

131704881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2701.

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 131704881 is about 11476.2747004418. The cubic root of 131704881 is about 508.7845991034.

The spelling of 131704881 in words is "one hundred thirty-one million, seven hundred four thousand, eight hundred eighty-one".