12700309 has 8 divisors (see below), whose sum is σ = 13487040. Its totient is φ = 11918016.

The previous prime is 12700273. The next prime is 12700327. The reversal of 12700309 is 90300721.

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

It is a cyclic number.

It is not a de Polignac number, because 12700309 - 2¹¹ = 12698261 is a prime.

It is a super-2 number, since 2×12700309² = 322595697390962, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12700309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12700109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6232 + ... + 8014.

It is an arithmetic number, because the mean of its divisors is an integer number (1685880).

Almost surely, 2^12700309 is an apocalyptic number.

It is an amenable number.

12700309 is a deficient number, since it is larger than the sum of its proper divisors (786731).

12700309 is a wasteful number, since it uses less digits than its factorization.

12700309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2219.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 12700309 is about 3563.7492897228. The cubic root of 12700309 is about 233.3125475815.

The spelling of 12700309 in words is "twelve million, seven hundred thousand, three hundred nine".