130039905 has 32 divisors (see below), whose sum is σ = 214099200. Its totient is φ = 67358720.

The previous prime is 130039879. The next prime is 130039909. The reversal of 130039905 is 509930031.

It is not a de Polignac number, because 130039905 - 2⁵ = 130039873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130039909) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 216796 + ... + 217394.

It is an arithmetic number, because the mean of its divisors is an integer number (6690600).

Almost surely, 2^130039905 is an apocalyptic number.

130039905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130039905 is a deficient number, since it is larger than the sum of its proper divisors (84059295).

130039905 is a wasteful number, since it uses less digits than its factorization.

130039905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001.

The product of its (nonzero) digits is 3645, while the sum is 30.

The square root of 130039905 is about 11403.5040667332. The cubic root of 130039905 is about 506.6315301022.

Adding to 130039905 its reverse (509930031), we get a palindrome (639969936).

The spelling of 130039905 in words is "one hundred thirty million, thirty-nine thousand, nine hundred five".