204211153 has 4 divisors (see below), whose sum is σ = 204241648. Its totient is φ = 204180660.

The previous prime is 204211151. The next prime is 204211187. The reversal of 204211153 is 351112402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 204211153 - 2¹ = 204211151 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 204211153.

It is not an unprimeable number, because it can be changed into a prime (204211151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351 + ... + 20212.

It is an arithmetic number, because the mean of its divisors is an integer number (51060412).

Almost surely, 2^204211153 is an apocalyptic number.

It is an amenable number.

204211153 is a deficient number, since it is larger than the sum of its proper divisors (30495).

204211153 is an equidigital number, since it uses as much as digits as its factorization.

204211153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30494.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 204211153 is about 14290.2467788349. The cubic root of 204211153 is about 588.8795675607.

Adding to 204211153 its reverse (351112402), we get a palindrome (555323555).

The spelling of 204211153 in words is "two hundred four million, two hundred eleven thousand, one hundred fifty-three".