130795778 has 4 divisors (see below), whose sum is σ = 196193670. Its totient is φ = 65397888.

The previous prime is 130795757. The next prime is 130795793. The reversal of 130795778 is 877597031.

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

It can be written as a sum of positive squares in only one way, i.e., 96491329 + 34304449 = 9823^2 + 5857^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32698943 + ... + 32698946.

Almost surely, 2^130795778 is an apocalyptic number.

130795778 is a deficient number, since it is larger than the sum of its proper divisors (65397892).

130795778 is an equidigital number, since it uses as much as digits as its factorization.

130795778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65397891.

The product of its (nonzero) digits is 370440, while the sum is 47.

The square root of 130795778 is about 11436.5981830263. The cubic root of 130795778 is about 507.6112537281.

The spelling of 130795778 in words is "one hundred thirty million, seven hundred ninety-five thousand, seven hundred seventy-eight".