131895 has 16 divisors (see below), whose sum is σ = 234720. Its totient is φ = 70272.

The previous prime is 131893. The next prime is 131899. The reversal of 131895 is 598131.

It is not a de Polignac number, because 131895 - 2¹ = 131893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

131895 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131891) 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, 354 + ... + 623.

It is an arithmetic number, because the mean of its divisors is an integer number (14670).

2¹³¹⁸⁹⁵ is an apocalyptic number.

131895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131895 is a deficient number, since it is larger than the sum of its proper divisors (102825).

131895 is an equidigital number, since it uses as much as digits as its factorization.

131895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 991 (or 985 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

The square root of 131895 is about 363.1735122500. The cubic root of 131895 is about 50.9029295458.

The spelling of 131895 in words is "one hundred thirty-one thousand, eight hundred ninety-five".