130785791 has 2 divisors, whose sum is σ = 130785792. Its totient is φ = 130785790.

The previous prime is 130785773. The next prime is 130785803. The reversal of 130785791 is 197587031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 130785791 - 2¹⁸ = 130523647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130785701) 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 as a sum of consecutive naturals, namely, 65392895 + 65392896.

It is an arithmetic number, because the mean of its divisors is an integer number (65392896).

Almost surely, 2^130785791 is an apocalyptic number.

130785791 is a deficient number, since it is larger than the sum of its proper divisors (1).

130785791 is an equidigital number, since it uses as much as digits as its factorization.

130785791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 41.

The square root of 130785791 is about 11436.1615501006. The cubic root of 130785791 is about 507.5983337325.

The spelling of 130785791 in words is "one hundred thirty million, seven hundred eighty-five thousand, seven hundred ninety-one".