209130 has 16 divisors (see below), whose sum is σ = 501984. Its totient is φ = 55760.

The previous prime is 209123. The next prime is 209147. The reversal of 209130 is 31902.

209130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

209130 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3456 + ... + 3515.

It is an arithmetic number, because the mean of its divisors is an integer number (31374).

2²⁰⁹¹³⁰ is an apocalyptic number.

209130 is an abundant number, since it is smaller than the sum of its proper divisors (292854).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

209130 is a wasteful number, since it uses less digits than its factorization.

209130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6981.

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

The square root of 209130 is about 457.3073364817. The cubic root of 209130 is about 59.3570231819.

The spelling of 209130 in words is "two hundred nine thousand, one hundred thirty".