130873509 has 16 divisors (see below), whose sum is σ = 208801600. Its totient is φ = 80537328.

The previous prime is 130873507. The next prime is 130873513. The reversal of 130873509 is 905378031.

It is not a de Polignac number, because 130873509 - 2¹ = 130873507 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130873507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186079 + ... + 186780.

It is an arithmetic number, because the mean of its divisors is an integer number (13050100).

Almost surely, 2^130873509 is an apocalyptic number.

It is an amenable number.

130873509 is a deficient number, since it is larger than the sum of its proper divisors (77928091).

130873509 is a wasteful number, since it uses less digits than its factorization.

130873509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372881 (or 372875 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 130873509 is about 11439.9960227266. The cubic root of 130873509 is about 507.7117903998.

The spelling of 130873509 in words is "one hundred thirty million, eight hundred seventy-three thousand, five hundred nine".