131044042 has 4 divisors (see below), whose sum is σ = 196566066. Its totient is φ = 65522020.

The previous prime is 131044031. The next prime is 131044063. The reversal of 131044042 is 240440131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240440131 = 29 ⋅8291039.

It can be written as a sum of positive squares in only one way, i.e., 124121881 + 6922161 = 11141^2 + 2631^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32761009 + ... + 32761012.

Almost surely, 2^131044042 is an apocalyptic number.

131044042 is a deficient number, since it is larger than the sum of its proper divisors (65522024).

131044042 is an equidigital number, since it uses as much as digits as its factorization.

131044042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65522023.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 131044042 is about 11447.4469642799. The cubic root of 131044042 is about 507.9322170705.

Adding to 131044042 its reverse (240440131), we get a palindrome (371484173).

The spelling of 131044042 in words is "one hundred thirty-one million, forty-four thousand, forty-two".