204401231 has 8 divisors (see below), whose sum is σ = 213103440. Its totient is φ = 195878592.

The previous prime is 204401173. The next prime is 204401237. The reversal of 204401231 is 132104402.

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

It is a cyclic number.

It is not a de Polignac number, because 204401231 - 2¹⁴ = 204384847 is a prime.

It is a super-2 number, since 2×204401231² = 83559726468630722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204401237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42566 + ... + 47123.

It is an arithmetic number, because the mean of its divisors is an integer number (26637930).

Almost surely, 2^204401231 is an apocalyptic number.

204401231 is a deficient number, since it is larger than the sum of its proper divisors (8702209).

204401231 is an equidigital number, since it uses as much as digits as its factorization.

204401231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89785.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 204401231 is about 14296.8958518974. The cubic root of 204401231 is about 589.0622189291.

Adding to 204401231 its reverse (132104402), we get a palindrome (336505633).

The spelling of 204401231 in words is "two hundred four million, four hundred one thousand, two hundred thirty-one".