131938 has 8 divisors (see below), whose sum is σ = 202860. Its totient is φ = 64320.

The previous prime is 131933. The next prime is 131939. The reversal of 131938 is 839131.

It can be written as a sum of positive squares in 2 ways, for example, as 131769 + 169 = 363^2 + 13^2 .

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

It is not an unprimeable number, because it can be changed into a prime (131933) by changing a digit.

131938 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 723 + ... + 886.

2¹³¹⁹³⁸ is an apocalyptic number.

131938 is a deficient number, since it is larger than the sum of its proper divisors (70922).

131938 is a wasteful number, since it uses less digits than its factorization.

131938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652.

The product of its digits is 648, while the sum is 25.

The square root of 131938 is about 363.2327077784. The cubic root of 131938 is about 50.9084606833.

The spelling of 131938 in words is "one hundred thirty-one thousand, nine hundred thirty-eight".