201669102 has 28 divisors (see below), whose sum is σ = 453551280. Its totient is φ = 67222548.

The previous prime is 201669101. The next prime is 201669109. The reversal of 201669102 is 201966102.

201669102 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 (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201669101) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 67702 + ... + 70617.

It is an arithmetic number, because the mean of its divisors is an integer number (16198260).

Almost surely, 2^201669102 is an apocalyptic number.

201669102 is an abundant number, since it is smaller than the sum of its proper divisors (251882178).

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

201669102 is an equidigital number, since it uses as much as digits as its factorization.

201669102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138339 (or 138324 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 201669102 is about 14201.0246813390. The cubic root of 201669102 is about 586.4258708909.

The spelling of 201669102 in words is "two hundred one million, six hundred sixty-nine thousand, one hundred two".