204168973 has 2 divisors, whose sum is σ = 204168974. Its totient is φ = 204168972.

The previous prime is 204168967. The next prime is 204168977. The reversal of 204168973 is 379861402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 173896969 + 30272004 = 13187^2 + 5502^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204168973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204168977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102084486 + 102084487.

It is an arithmetic number, because the mean of its divisors is an integer number (102084487).

Almost surely, 2^204168973 is an apocalyptic number.

It is an amenable number.

204168973 is a deficient number, since it is larger than the sum of its proper divisors (1).

204168973 is an equidigital number, since it uses as much as digits as its factorization.

204168973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 204168973 is about 14288.7708708622. The cubic root of 204168973 is about 588.8390202316.

The spelling of 204168973 in words is "two hundred four million, one hundred sixty-eight thousand, nine hundred seventy-three".