13700000209 has 27 divisors (see below), whose sum is σ = 16682709897. Its totient is φ = 11216848104.

The previous prime is 13700000207. The next prime is 13700000213. The reversal of 13700000209 is 90200000731.

The square root of 13700000209 is 117047.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 13700000209 - 2¹ = 13700000207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13700000209.

It is not an unprimeable number, because it can be changed into a prime (13700000207) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 18844204 + ... + 18844930.

Almost surely, 2^13700000209 is an apocalyptic number.

13700000209 is the 117047-th square number.

13700000209 is the 58524-th centered octagonal number.

It is an amenable number.

13700000209 is a deficient number, since it is larger than the sum of its proper divisors (2982709688).

13700000209 is an frugal number, since it uses more digits than its factorization.

13700000209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514 (or 757 counting only the distinct ones).

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

The spelling of 13700000209 in words is "thirteen billion, seven hundred million, two hundred nine", and thus it is an aban number.