204100455 has 24 divisors (see below), whose sum is σ = 353617488. Its totient is φ = 100478976.

The previous prime is 204100447. The next prime is 204100493. The reversal of 204100455 is 554001402.

204100455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 204100455 - 2³ = 204100447 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37722 + ... + 42791.

It is an arithmetic number, because the mean of its divisors is an integer number (14734062).

Almost surely, 2^204100455 is an apocalyptic number.

204100455 is a deficient number, since it is larger than the sum of its proper divisors (149517033).

204100455 is a wasteful number, since it uses less digits than its factorization.

204100455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80547 (or 80534 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 204100455 is about 14286.3730526681. The cubic root of 204100455 is about 588.7731424678.

Adding to 204100455 its reverse (554001402), we get a palindrome (758101857).

The spelling of 204100455 in words is "two hundred four million, one hundred thousand, four hundred fifty-five".