130257139 has 2 divisors, whose sum is σ = 130257140. Its totient is φ = 130257138.

The previous prime is 130257137. The next prime is 130257181. The reversal of 130257139 is 931752031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 130257139 - 2¹ = 130257137 is a prime.

Together with 130257137, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 130257139.

It is not a weakly prime, because it can be changed into another prime (130257137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65128569 + 65128570.

It is an arithmetic number, because the mean of its divisors is an integer number (65128570).

Almost surely, 2^130257139 is an apocalyptic number.

130257139 is a deficient number, since it is larger than the sum of its proper divisors (1).

130257139 is an equidigital number, since it uses as much as digits as its factorization.

130257139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 130257139 is about 11413.0249714964. The cubic root of 130257139 is about 506.9134855175.

It can be divided in two parts, 13025 and 7139, that added together give a square (20164 = 142²).

The spelling of 130257139 in words is "one hundred thirty million, two hundred fifty-seven thousand, one hundred thirty-nine".