204045101 has 16 divisors (see below), whose sum is σ = 233998128. Its totient is φ = 176256000.

The previous prime is 204045097. The next prime is 204045113. The reversal of 204045101 is 101540402.

It can be written as a sum of positive squares in 8 ways, for example, as 98982601 + 105062500 = 9949^2 + 10250^2 .

It is not a de Polignac number, because 204045101 - 2² = 204045097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 204045101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204045181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37451 + ... + 42551.

It is an arithmetic number, because the mean of its divisors is an integer number (14624883).

Almost surely, 2^204045101 is an apocalyptic number.

It is an amenable number.

204045101 is a deficient number, since it is larger than the sum of its proper divisors (29953027).

204045101 is a wasteful number, since it uses less digits than its factorization.

204045101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5312.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 204045101 is about 14284.4356206327. The cubic root of 204045101 is about 588.7199106817.

Adding to 204045101 its reverse (101540402), we get a palindrome (305585503).

It can be divided in two parts, 20404 and 5101, that multiplied together give a square (104080804 = 10202²).

The spelling of 204045101 in words is "two hundred four million, forty-five thousand, one hundred one".