131070239 has 2 divisors, whose sum is σ = 131070240. Its totient is φ = 131070238.

The previous prime is 131070209. The next prime is 131070253. The reversal of 131070239 is 932070131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131070239 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131070209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65535119 + 65535120.

It is an arithmetic number, because the mean of its divisors is an integer number (65535120).

Almost surely, 2^131070239 is an apocalyptic number.

131070239 is a deficient number, since it is larger than the sum of its proper divisors (1).

131070239 is an equidigital number, since it uses as much as digits as its factorization.

131070239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 131070239 is about 11448.5911360307. The cubic root of 131070239 is about 507.9660617065.

The spelling of 131070239 in words is "one hundred thirty-one million, seventy thousand, two hundred thirty-nine".