209030613 has 16 divisors (see below), whose sum is σ = 313853952. Its totient is φ = 122598000.

The previous prime is 209030597. The next prime is 209030617. The reversal of 209030613 is 316030902.

It is not a de Polignac number, because 209030613 - 2⁴ = 209030597 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (209030617) 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, 101143 + ... + 103188.

It is an arithmetic number, because the mean of its divisors is an integer number (19615872).

Almost surely, 2^209030613 is an apocalyptic number.

It is an amenable number.

209030613 is a deficient number, since it is larger than the sum of its proper divisors (104823339).

209030613 is a wasteful number, since it uses less digits than its factorization.

209030613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204376.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 209030613 is about 14457.8910287773. The cubic root of 209030613 is about 593.4761874254.

The spelling of 209030613 in words is "two hundred nine million, thirty thousand, six hundred thirteen".