130640609 has 8 divisors (see below), whose sum is σ = 142633920. Its totient is φ = 118666800.

The previous prime is 130640567. The next prime is 130640611. The reversal of 130640609 is 906046031.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130640609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130640659) 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, 11564 + ... + 19874.

It is an arithmetic number, because the mean of its divisors is an integer number (17829240).

Almost surely, 2^130640609 is an apocalyptic number.

It is an amenable number.

130640609 is a deficient number, since it is larger than the sum of its proper divisors (11993311).

130640609 is a wasteful number, since it uses less digits than its factorization.

130640609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9751.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 130640609 is about 11429.8122906721. The cubic root of 130640609 is about 507.4104401644.

The spelling of 130640609 in words is "one hundred thirty million, six hundred forty thousand, six hundred nine".