130039909 has 2 divisors, whose sum is σ = 130039910. Its totient is φ = 130039908.

The previous prime is 130039879. The next prime is 130039927. The reversal of 130039909 is 909930031.

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., 91872225 + 38167684 = 9585^2 + 6178^2 .

It is a cyclic number.

It is not a de Polignac number, because 130039909 - 2¹³ = 130031717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130039939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65019954 + 65019955.

It is an arithmetic number, because the mean of its divisors is an integer number (65019955).

Almost surely, 2^130039909 is an apocalyptic number.

It is an amenable number.

130039909 is a deficient number, since it is larger than the sum of its proper divisors (1).

130039909 is an equidigital number, since it uses as much as digits as its factorization.

130039909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6561, while the sum is 34.

The square root of 130039909 is about 11403.5042421179. The cubic root of 130039909 is about 506.6315352969.

It can be divided in two parts, 1300 and 39909, that added together give a square (41209 = 203²).

The spelling of 130039909 in words is "one hundred thirty million, thirty-nine thousand, nine hundred nine".