131319739 has 8 divisors (see below), whose sum is σ = 134304768. Its totient is φ = 128342760.

The previous prime is 131319731. The next prime is 131319779. The reversal of 131319739 is 937913131.

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

It is a cyclic number.

It is not a de Polignac number, because 131319739 - 2³ = 131319731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131319698 and 131319707.

It is not an unprimeable number, because it can be changed into a prime (131319731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41284 + ... + 44350.

It is an arithmetic number, because the mean of its divisors is an integer number (16788096).

Almost surely, 2^131319739 is an apocalyptic number.

131319739 is a deficient number, since it is larger than the sum of its proper divisors (2985029).

131319739 is an equidigital number, since it uses as much as digits as its factorization.

131319739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4025.

The product of its digits is 15309, while the sum is 37.

The square root of 131319739 is about 11459.4824926783. The cubic root of 131319739 is about 508.2881719501.

The spelling of 131319739 in words is "one hundred thirty-one million, three hundred nineteen thousand, seven hundred thirty-nine".