131079239 has 2 divisors, whose sum is σ = 131079240. Its totient is φ = 131079238.

The previous prime is 131079227. The next prime is 131079241. The reversal of 131079239 is 932970131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131079239 - 2¹² = 131075143 is a prime.

Together with 131079241, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 131079199 and 131079208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131079539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65539619 + 65539620.

It is an arithmetic number, because the mean of its divisors is an integer number (65539620).

Almost surely, 2^131079239 is an apocalyptic number.

131079239 is a deficient number, since it is larger than the sum of its proper divisors (1).

131079239 is an equidigital number, since it uses as much as digits as its factorization.

131079239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 131079239 is about 11448.9841907481. The cubic root of 131079239 is about 507.9776880171.

The spelling of 131079239 in words is "one hundred thirty-one million, seventy-nine thousand, two hundred thirty-nine".