131983042 has 4 divisors (see below), whose sum is σ = 197974566. Its totient is φ = 65991520.

The previous prime is 131983037. The next prime is 131983057. The reversal of 131983042 is 240389131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240389131 = 151 ⋅1591981.

It can be written as a sum of positive squares in only one way, i.e., 69872881 + 62110161 = 8359^2 + 7881^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131982995 and 131983013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32995759 + ... + 32995762.

Almost surely, 2^131983042 is an apocalyptic number.

131983042 is a deficient number, since it is larger than the sum of its proper divisors (65991524).

131983042 is an equidigital number, since it uses as much as digits as its factorization.

131983042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65991523.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 131983042 is about 11488.3872671494. The cubic root of 131983042 is about 509.1425319695.

The spelling of 131983042 in words is "one hundred thirty-one million, nine hundred eighty-three thousand, forty-two".