209025213 has 16 divisors (see below), whose sum is σ = 296225280. Its totient is φ = 130730544.

The previous prime is 209025211. The next prime is 209025227. The reversal of 209025213 is 312520902.

It is not a de Polignac number, because 209025213 - 2¹ = 209025211 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 (209025211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11931 + ... + 23672.

It is an arithmetic number, because the mean of its divisors is an integer number (18514080).

Almost surely, 2^209025213 is an apocalyptic number.

It is an amenable number.

209025213 is a deficient number, since it is larger than the sum of its proper divisors (87200067).

209025213 is a wasteful number, since it uses less digits than its factorization.

209025213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35728.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 209025213 is about 14457.7042783424. The cubic root of 209025213 is about 593.4710768517.

The spelling of 209025213 in words is "two hundred nine million, twenty-five thousand, two hundred thirteen".