131540117039 has 4 divisors (see below), whose sum is σ = 131618932440. Its totient is φ = 131461301640.

The previous prime is 131540116991. The next prime is 131540117041. The reversal of 131540117039 is 930711045131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131540117039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131540117239) 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, 39405197 + ... + 39408534.

It is an arithmetic number, because the mean of its divisors is an integer number (32904733110).

Almost surely, 2^131540117039 is an apocalyptic number.

131540117039 is a deficient number, since it is larger than the sum of its proper divisors (78815401).

131540117039 is an equidigital number, since it uses as much as digits as its factorization.

131540117039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78815400.

The product of its (nonzero) digits is 11340, while the sum is 35.

The spelling of 131540117039 in words is "one hundred thirty-one billion, five hundred forty million, one hundred seventeen thousand, thirty-nine".