202102 has 4 divisors (see below), whose sum is σ = 303156. Its totient is φ = 101050.

The previous prime is 202099. The next prime is 202109. The reversal of 202102 is 201202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50524 + ... + 50527.

It is an arithmetic number, because the mean of its divisors is an integer number (75789).

2²⁰²¹⁰² is an apocalyptic number.

202102 is a deficient number, since it is larger than the sum of its proper divisors (101054).

202102 is a wasteful number, since it uses less digits than its factorization.

202102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101053.

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 202102 is about 449.5575602745. The cubic root of 202102 is about 58.6845173526.

Adding to 202102 its reverse (201202), we get a palindrome (403304).

Subtracting from 202102 its reverse (201202), we obtain a square (900 = 30²).

The spelling of 202102 in words is "two hundred two thousand, one hundred two", and thus it is an iban number.