202138 has 8 divisors (see below), whose sum is σ = 305280. Its totient is φ = 100380.

The previous prime is 202129. The next prime is 202183. The reversal of 202138 is 831202.

It is a happy number.

202138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

202138 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 3 ways as a sum of consecutive naturals, for example, 183 + ... + 661.

It is an arithmetic number, because the mean of its divisors is an integer number (38160).

2²⁰²¹³⁸ is an apocalyptic number.

202138 is a deficient number, since it is larger than the sum of its proper divisors (103142).

202138 is a wasteful number, since it uses less digits than its factorization.

202138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 202138 is about 449.5975978584. The cubic root of 202138 is about 58.6880015952.

The spelling of 202138 in words is "two hundred two thousand, one hundred thirty-eight".