204142663 has 2 divisors, whose sum is σ = 204142664. Its totient is φ = 204142662.

The previous prime is 204142639. The next prime is 204142691. The reversal of 204142663 is 366241402.

204142663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (204142691) can be obtained adding 204142663 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204142663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204142633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102071331 + 102071332.

It is an arithmetic number, because the mean of its divisors is an integer number (102071332).

Almost surely, 2^204142663 is an apocalyptic number.

204142663 is a deficient number, since it is larger than the sum of its proper divisors (1).

204142663 is an equidigital number, since it uses as much as digits as its factorization.

204142663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 204142663 is about 14287.8501881844. The cubic root of 204142663 is about 588.8137257906.

The spelling of 204142663 in words is "two hundred four million, one hundred forty-two thousand, six hundred sixty-three".