131944942 has 4 divisors (see below), whose sum is σ = 197917416. Its totient is φ = 65972470.

The previous prime is 131944921. The next prime is 131944961. The reversal of 131944942 is 249449131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 249449131 = 151 ⋅1651981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32986234 + ... + 32986237.

It is an arithmetic number, because the mean of its divisors is an integer number (49479354).

Almost surely, 2^131944942 is an apocalyptic number.

131944942 is a deficient number, since it is larger than the sum of its proper divisors (65972474).

131944942 is an equidigital number, since it uses as much as digits as its factorization.

131944942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65972473.

The product of its digits is 31104, while the sum is 37.

The square root of 131944942 is about 11486.7289512724. The cubic root of 131944942 is about 509.0935352775.

The spelling of 131944942 in words is "one hundred thirty-one million, nine hundred forty-four thousand, nine hundred forty-two".