209000013 has 16 divisors (see below), whose sum is σ = 296071680. Its totient is φ = 130890816.

The previous prime is 208999993. The next prime is 209000017. The reversal of 209000013 is 310000902.

209000013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 209000013 - 2⁸ = 208999757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 208999956 and 209000001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (209000017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29245 + ... + 35682.

It is an arithmetic number, because the mean of its divisors is an integer number (18504480).

Almost surely, 2^209000013 is an apocalyptic number.

It is an amenable number.

209000013 is a deficient number, since it is larger than the sum of its proper divisors (87071667).

209000013 is a wasteful number, since it uses less digits than its factorization.

209000013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64996.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 209000013 is about 14456.8327444154. The cubic root of 209000013 is about 593.4472263443.

Adding to 209000013 its reverse (310000902), we get a palindrome (519000915).

The spelling of 209000013 in words is "two hundred nine million, thirteen", and thus it is an aban number.