130859009 has 4 divisors (see below), whose sum is σ = 131170260. Its totient is φ = 130547760.

The previous prime is 130858963. The next prime is 130859021. The reversal of 130859009 is 900958031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 30558784 + 100300225 = 5528^2 + 10015^2 .

It is a cyclic number.

It is not a de Polignac number, because 130859009 - 2²⁰ = 129810433 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 130859009.

It is not an unprimeable number, because it can be changed into a prime (130829009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154994 + ... + 155835.

It is an arithmetic number, because the mean of its divisors is an integer number (32792565).

It is a Proth number, since it is equal to 7987 ⋅ 2¹⁴ + 1 and 7987 < 2¹⁴.

Almost surely, 2^130859009 is an apocalyptic number.

It is an amenable number.

130859009 is a deficient number, since it is larger than the sum of its proper divisors (311251).

130859009 is an equidigital number, since it uses as much as digits as its factorization.

130859009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311250.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 130859009 is about 11439.3622636928. The cubic root of 130859009 is about 507.6930392334.

The spelling of 130859009 in words is "one hundred thirty million, eight hundred fifty-nine thousand, nine".