130605779 has 2 divisors, whose sum is σ = 130605780. Its totient is φ = 130605778.

The previous prime is 130605773. The next prime is 130605803. The reversal of 130605779 is 977506031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 130605779 - 2¹² = 130601683 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (130605773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65302889 + 65302890.

It is an arithmetic number, because the mean of its divisors is an integer number (65302890).

Almost surely, 2^130605779 is an apocalyptic number.

130605779 is a deficient number, since it is larger than the sum of its proper divisors (1).

130605779 is an equidigital number, since it uses as much as digits as its factorization.

130605779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39690, while the sum is 38.

The square root of 130605779 is about 11428.2885420346. The cubic root of 130605779 is about 507.3653427107.

The spelling of 130605779 in words is "one hundred thirty million, six hundred five thousand, seven hundred seventy-nine".