204145159 has 2 divisors, whose sum is σ = 204145160. Its totient is φ = 204145158.

The previous prime is 204145153. The next prime is 204145187. The reversal of 204145159 is 951541402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204145159 - 2¹¹ = 204143111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204145159.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204145153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102072579 + 102072580.

It is an arithmetic number, because the mean of its divisors is an integer number (102072580).

Almost surely, 2^204145159 is an apocalyptic number.

204145159 is a deficient number, since it is larger than the sum of its proper divisors (1).

204145159 is an equidigital number, since it uses as much as digits as its factorization.

204145159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 204145159 is about 14287.9375348579. The cubic root of 204145159 is about 588.8161255389.

It can be divided in two parts, 204145 and 159, that added together give a square (204304 = 452²).

The spelling of 204145159 in words is "two hundred four million, one hundred forty-five thousand, one hundred fifty-nine".