131330039 has 4 divisors (see below), whose sum is σ = 131372160. Its totient is φ = 131287920.

The previous prime is 131330021. The next prime is 131330053. The reversal of 131330039 is 930033131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 930033131 = 137 ⋅6788563.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131330039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131329996 and 131330023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131330099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15974 + ... + 22755.

It is an arithmetic number, because the mean of its divisors is an integer number (32843040).

Almost surely, 2^131330039 is an apocalyptic number.

131330039 is a deficient number, since it is larger than the sum of its proper divisors (42121).

131330039 is an equidigital number, since it uses as much as digits as its factorization.

131330039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42120.

The product of its (nonzero) digits is 729, while the sum is 23.

The square root of 131330039 is about 11459.9318933404. The cubic root of 131330039 is about 508.3014607148.

The spelling of 131330039 in words is "one hundred thirty-one million, three hundred thirty thousand, thirty-nine".