204512153 has 2 divisors, whose sum is σ = 204512154. Its totient is φ = 204512152.

The previous prime is 204512149. The next prime is 204512183. The reversal of 204512153 is 351215402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 171426649 + 33085504 = 13093^2 + 5752^2 .

It is a cyclic number.

It is not a de Polignac number, because 204512153 - 2² = 204512149 is a prime.

It is not a weakly prime, because it can be changed into another prime (204512183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102256076 + 102256077.

It is an arithmetic number, because the mean of its divisors is an integer number (102256077).

Almost surely, 2^204512153 is an apocalyptic number.

It is an amenable number.

204512153 is a deficient number, since it is larger than the sum of its proper divisors (1).

204512153 is an equidigital number, since it uses as much as digits as its factorization.

204512153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 204512153 is about 14300.7745594426. The cubic root of 204512153 is about 589.1687547254.

Adding to 204512153 its reverse (351215402), we get a palindrome (555727555).

The spelling of 204512153 in words is "two hundred four million, five hundred twelve thousand, one hundred fifty-three".