204302131 has 4 divisors (see below), whose sum is σ = 222875064. Its totient is φ = 185729200.

The previous prime is 204302113. The next prime is 204302173. The reversal of 204302131 is 131203402.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 204302131 - 2⁵ = 204302099 is a prime.

It is a super-2 number, since 2×204302131² = 83478721462282322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204312131) 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, 9286450 + ... + 9286471.

It is an arithmetic number, because the mean of its divisors is an integer number (55718766).

Almost surely, 2^204302131 is an apocalyptic number.

204302131 is a deficient number, since it is larger than the sum of its proper divisors (18572933).

204302131 is a wasteful number, since it uses less digits than its factorization.

204302131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18572932.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 204302131 is about 14293.4296444205. The cubic root of 204302131 is about 588.9670050495.

Adding to 204302131 its reverse (131203402), we get a palindrome (335505533).

The spelling of 204302131 in words is "two hundred four million, three hundred two thousand, one hundred thirty-one".