209013102 has 16 divisors (see below), whose sum is σ = 464473680. Its totient is φ = 69671016.

The previous prime is 209013061. The next prime is 209013131. The reversal of 209013102 is 201310902.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 1935253 + ... + 1935360.

It is an arithmetic number, because the mean of its divisors is an integer number (29029605).

Almost surely, 2^209013102 is an apocalyptic number.

209013102 is an abundant number, since it is smaller than the sum of its proper divisors (255460578).

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

209013102 is a wasteful number, since it uses less digits than its factorization.

209013102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3870624 (or 3870618 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 209013102 is about 14457.2854298447. The cubic root of 209013102 is about 593.4596146507.

The spelling of 209013102 in words is "two hundred nine million, thirteen thousand, one hundred two".