130820793 has 4 divisors (see below), whose sum is σ = 174427728. Its totient is φ = 87213860.

The previous prime is 130820777. The next prime is 130820821. The reversal of 130820793 is 397028031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 130820793 - 2⁴ = 130820777 is a prime.

It is a super-2 number, since 2×130820793² = 34228159762297698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135820793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21803463 + ... + 21803468.

It is an arithmetic number, because the mean of its divisors is an integer number (43606932).

Almost surely, 2^130820793 is an apocalyptic number.

It is an amenable number.

130820793 is a deficient number, since it is larger than the sum of its proper divisors (43606935).

130820793 is an equidigital number, since it uses as much as digits as its factorization.

130820793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43606934.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 130820793 is about 11437.6917688841. The cubic root of 130820793 is about 507.6436122805.

The spelling of 130820793 in words is "one hundred thirty million, eight hundred twenty thousand, seven hundred ninety-three".