131902 has 4 divisors (see below), whose sum is σ = 197856. Its totient is φ = 65950.

The previous prime is 131899. The next prime is 131909. The reversal of 131902 is 209131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 209131 = 13 ⋅16087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32974 + ... + 32977.

It is an arithmetic number, because the mean of its divisors is an integer number (49464).

2¹³¹⁹⁰² is an apocalyptic number.

131902 is a deficient number, since it is larger than the sum of its proper divisors (65954).

131902 is an equidigital number, since it uses as much as digits as its factorization.

131902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65953.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 131902 is about 363.1831493888. The cubic root of 131902 is about 50.9038300454.

The spelling of 131902 in words is "one hundred thirty-one thousand, nine hundred two".