131955 has 16 divisors (see below), whose sum is σ = 222720. Its totient is φ = 66528.

The previous prime is 131947. The next prime is 131959. The reversal of 131955 is 559131.

It is not a de Polignac number, because 131955 - 2³ = 131947 is a prime.

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (131959) 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, 54 + ... + 516.

It is an arithmetic number, because the mean of its divisors is an integer number (13920).

2¹³¹⁹⁵⁵ is an apocalyptic number.

131955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131955 is a deficient number, since it is larger than the sum of its proper divisors (90765).

131955 is a wasteful number, since it uses less digits than its factorization.

131955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490.

The product of its digits is 675, while the sum is 24.

The square root of 131955 is about 363.2561080010. The cubic root of 131955 is about 50.9106470806.

The spelling of 131955 in words is "one hundred thirty-one thousand, nine hundred fifty-five".