131107839 has 4 divisors (see below), whose sum is σ = 174810456. Its totient is φ = 87405224.

The previous prime is 131107829. The next prime is 131107841. The reversal of 131107839 is 938701131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 938701131 = 3 ⋅312900377.

It is a cyclic number.

It is not a de Polignac number, because 131107839 - 2⁵ = 131107807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131107829) 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, 21851304 + ... + 21851309.

It is an arithmetic number, because the mean of its divisors is an integer number (43702614).

Almost surely, 2^131107839 is an apocalyptic number.

131107839 is a deficient number, since it is larger than the sum of its proper divisors (43702617).

131107839 is an equidigital number, since it uses as much as digits as its factorization.

131107839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43702616.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 131107839 is about 11450.2331417312. The cubic root of 131107839 is about 508.0146303162.

The spelling of 131107839 in words is "one hundred thirty-one million, one hundred seven thousand, eight hundred thirty-nine".