130237809 has 8 divisors (see below), whose sum is σ = 187008192. Its totient is φ = 80146320.

The previous prime is 130237787. The next prime is 130237813. The reversal of 130237809 is 908732031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 130237809 - 2⁵ = 130237777 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 130237809.

It is not an unprimeable number, because it can be changed into a prime (130237819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1669677 + ... + 1669754.

It is an arithmetic number, because the mean of its divisors is an integer number (23376024).

Almost surely, 2^130237809 is an apocalyptic number.

It is an amenable number.

130237809 is a deficient number, since it is larger than the sum of its proper divisors (56770383).

130237809 is a wasteful number, since it uses less digits than its factorization.

130237809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3339447.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 130237809 is about 11412.1781006081. The cubic root of 130237809 is about 506.8884091634. Note that the first 3 decimals are identical.

The spelling of 130237809 in words is "one hundred thirty million, two hundred thirty-seven thousand, eight hundred nine".