204650143 has 2 divisors, whose sum is σ = 204650144. Its totient is φ = 204650142.

The previous prime is 204650123. The next prime is 204650161. The reversal of 204650143 is 341056402.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204650143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204650123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102325071 + 102325072.

It is an arithmetic number, because the mean of its divisors is an integer number (102325072).

Almost surely, 2^204650143 is an apocalyptic number.

204650143 is a deficient number, since it is larger than the sum of its proper divisors (1).

204650143 is an equidigital number, since it uses as much as digits as its factorization.

204650143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 204650143 is about 14305.5983097527. The cubic root of 204650143 is about 589.3012344129.

The spelling of 204650143 in words is "two hundred four million, six hundred fifty thousand, one hundred forty-three".