202106902 has 4 divisors (see below), whose sum is σ = 303160356. Its totient is φ = 101053450.

The previous prime is 202106899. The next prime is 202106903. The reversal of 202106902 is 209601202.

It is a happy number.

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

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202106903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50526724 + ... + 50526727.

It is an arithmetic number, because the mean of its divisors is an integer number (75790089).

Almost surely, 2^202106902 is an apocalyptic number.

202106902 is a deficient number, since it is larger than the sum of its proper divisors (101053454).

202106902 is a wasteful number, since it uses less digits than its factorization.

202106902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101053453.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 202106902 is about 14216.4307053494. The cubic root of 202106902 is about 586.8499181467.

The spelling of 202106902 in words is "two hundred two million, one hundred six thousand, nine hundred two".