130557439 has 2 divisors, whose sum is σ = 130557440. Its totient is φ = 130557438.

The previous prime is 130557431. The next prime is 130557451. The reversal of 130557439 is 934755031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 130557439 - 2³ = 130557431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130557398 and 130557407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130557431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65278719 + 65278720.

It is an arithmetic number, because the mean of its divisors is an integer number (65278720).

Almost surely, 2^130557439 is an apocalyptic number.

130557439 is a deficient number, since it is larger than the sum of its proper divisors (1).

130557439 is an equidigital number, since it uses as much as digits as its factorization.

130557439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 130557439 is about 11426.1734189535. The cubic root of 130557439 is about 507.3027393880.

The spelling of 130557439 in words is "one hundred thirty million, five hundred fifty-seven thousand, four hundred thirty-nine".