204220153 has 4 divisors (see below), whose sum is σ = 204248740. Its totient is φ = 204191568.

The previous prime is 204220141. The next prime is 204220169. The reversal of 204220153 is 351022402.

204220153 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 16064064 + 188156089 = 4008^2 + 13717^2 .

It is a cyclic number.

It is not a de Polignac number, because 204220153 - 2²⁵ = 170665721 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204220153.

It is not an unprimeable number, because it can be changed into a prime (204220103) 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, 6751 + ... + 21307.

It is an arithmetic number, because the mean of its divisors is an integer number (51062185).

Almost surely, 2^204220153 is an apocalyptic number.

It is an amenable number.

204220153 is a deficient number, since it is larger than the sum of its proper divisors (28587).

204220153 is a wasteful number, since it uses less digits than its factorization.

204220153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28586.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 204220153 is about 14290.5616754556. The cubic root of 204220153 is about 588.8882184729. Note that the first 3 decimals are identical.

Adding to 204220153 its reverse (351022402), we get a palindrome (555242555).

The spelling of 204220153 in words is "two hundred four million, two hundred twenty thousand, one hundred fifty-three".