131297042 has 8 divisors (see below), whose sum is σ = 197082300. Its totient is φ = 65602944.

The previous prime is 131297039. The next prime is 131297057. The reversal of 131297042 is 240792131.

It can be written as a sum of positive squares in 2 ways, for example, as 127260961 + 4036081 = 11281^2 + 2009^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 131296996 and 131297014.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19067 + ... + 25022.

Almost surely, 2^131297042 is an apocalyptic number.

131297042 is a deficient number, since it is larger than the sum of its proper divisors (65785258).

131297042 is a wasteful number, since it uses less digits than its factorization.

131297042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45580.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 131297042 is about 11458.4921346572. The cubic root of 131297042 is about 508.2588864788.

The spelling of 131297042 in words is "one hundred thirty-one million, two hundred ninety-seven thousand, forty-two".