130019905 has 16 divisors (see below), whose sum is σ = 162590400. Its totient is φ = 99691200.

The previous prime is 130019899. The next prime is 130019951. The reversal of 130019905 is 509910031.

It is not a de Polignac number, because 130019905 - 2⁷ = 130019777 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16930 + ... + 23380.

It is an arithmetic number, because the mean of its divisors is an integer number (10161900).

Almost surely, 2^130019905 is an apocalyptic number.

It is an amenable number.

130019905 is a deficient number, since it is larger than the sum of its proper divisors (32570495).

130019905 is a wasteful number, since it uses less digits than its factorization.

130019905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6624.

The product of its (nonzero) digits is 1215, while the sum is 28.

The square root of 130019905 is about 11402.6271095744. The cubic root of 130019905 is about 506.6055556392.

Adding to 130019905 its reverse (509910031), we get a palindrome (639929936).

The spelling of 130019905 in words is "one hundred thirty million, nineteen thousand, nine hundred five".