130673779 has 4 divisors (see below), whose sum is σ = 133139376. Its totient is φ = 128208184.

The previous prime is 130673749. The next prime is 130673783. The reversal of 130673779 is 977376031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130673779 - 2¹⁵ = 130641011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130673749) 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 in 3 ways as a sum of consecutive naturals, for example, 1232719 + ... + 1232824.

It is an arithmetic number, because the mean of its divisors is an integer number (33284844).

Almost surely, 2^130673779 is an apocalyptic number.

130673779 is a deficient number, since it is larger than the sum of its proper divisors (2465597).

130673779 is an equidigital number, since it uses as much as digits as its factorization.

130673779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2465596.

The product of its (nonzero) digits is 166698, while the sum is 43.

The square root of 130673779 is about 11431.2632285325. The cubic root of 130673779 is about 507.4533808196.

The spelling of 130673779 in words is "one hundred thirty million, six hundred seventy-three thousand, seven hundred seventy-nine".