130794809 has 2 divisors, whose sum is σ = 130794810. Its totient is φ = 130794808.

The previous prime is 130794791. The next prime is 130794817. The reversal of 130794809 is 908497031.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109265209 + 21529600 = 10453^2 + 4640^2 .

It is a cyclic number.

It is not a de Polignac number, because 130794809 - 2¹⁶ = 130729273 is a prime.

It is a super-2 number, since 2×130794809² = 34214564122692962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (130794869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65397404 + 65397405.

It is an arithmetic number, because the mean of its divisors is an integer number (65397405).

Almost surely, 2^130794809 is an apocalyptic number.

It is an amenable number.

130794809 is a deficient number, since it is larger than the sum of its proper divisors (1).

130794809 is an equidigital number, since it uses as much as digits as its factorization.

130794809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 130794809 is about 11436.5558189518. Note that the first 3 decimals coincide. The cubic root of 130794809 is about 507.6100001797.

The spelling of 130794809 in words is "one hundred thirty million, seven hundred ninety-four thousand, eight hundred nine".