204122153 has 4 divisors (see below), whose sum is σ = 204206208. Its totient is φ = 204038100.

The previous prime is 204122143. The next prime is 204122159. The reversal of 204122153 is 351221402.

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 a de Polignac number, because none of the positive numbers 2^k-204122153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204122159) 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, 38273 + ... + 43278.

It is an arithmetic number, because the mean of its divisors is an integer number (51051552).

Almost surely, 2^204122153 is an apocalyptic number.

It is an amenable number.

204122153 is a deficient number, since it is larger than the sum of its proper divisors (84055).

204122153 is an equidigital number, since it uses as much as digits as its factorization.

204122153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84054.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 204122153 is about 14287.1324274677. The cubic root of 204122153 is about 588.7940059636.

Adding to 204122153 its reverse (351221402), we get a palindrome (555343555).

The spelling of 204122153 in words is "two hundred four million, one hundred twenty-two thousand, one hundred fifty-three".