202520189 has 4 divisors (see below), whose sum is σ = 204608124. Its totient is φ = 200432256.

The previous prime is 202520173. The next prime is 202520191. The reversal of 202520189 is 981025202.

202520189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 144120025 + 58400164 = 12005^2 + 7642^2 .

It is a cyclic number.

It is not a de Polignac number, because 202520189 - 2⁴ = 202520173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202520119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1043822 + ... + 1044015.

It is an arithmetic number, because the mean of its divisors is an integer number (51152031).

Almost surely, 2^202520189 is an apocalyptic number.

It is an amenable number.

202520189 is a deficient number, since it is larger than the sum of its proper divisors (2087935).

202520189 is an equidigital number, since it uses as much as digits as its factorization.

202520189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2087934.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 202520189 is about 14230.9588222298. The cubic root of 202520189 is about 587.2496609003.

The spelling of 202520189 in words is "two hundred two million, five hundred twenty thousand, one hundred eighty-nine".