204172301 has 4 divisors (see below), whose sum is σ = 204200892. Its totient is φ = 204143712.

The previous prime is 204172289. The next prime is 204172303. The reversal of 204172301 is 103271402.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 76143076 + 128029225 = 8726^2 + 11315^2 .

It is a cyclic number.

It is not a de Polignac number, because 204172301 - 2⁶ = 204172237 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 (204172303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6521 + ... + 21233.

It is an arithmetic number, because the mean of its divisors is an integer number (51050223).

Almost surely, 2^204172301 is an apocalyptic number.

It is an amenable number.

204172301 is a deficient number, since it is larger than the sum of its proper divisors (28591).

204172301 is a wasteful number, since it uses less digits than its factorization.

204172301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28590.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 204172301 is about 14288.8873254708. The cubic root of 204172301 is about 588.8422196168.

The spelling of 204172301 in words is "two hundred four million, one hundred seventy-two thousand, three hundred one".