209163230 has 16 divisors (see below), whose sum is σ = 378806544. Its totient is φ = 83151360.

The previous prime is 209163217. The next prime is 209163271. The reversal of 209163230 is 32361902.

209163230 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 209163230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62531 + ... + 65790.

It is an arithmetic number, because the mean of its divisors is an integer number (23675409).

Almost surely, 2^209163230 is an apocalyptic number.

209163230 is a deficient number, since it is larger than the sum of its proper divisors (169643314).

209163230 is a wasteful number, since it uses less digits than its factorization.

209163230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128491.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 209163230 is about 14462.4766205515. The cubic root of 209163230 is about 593.6016688749.

The spelling of 209163230 in words is "two hundred nine million, one hundred sixty-three thousand, two hundred thirty".