204169001 has 2 divisors, whose sum is σ = 204169002. Its totient is φ = 204169000.

The previous prime is 204168989. The next prime is 204169037. The reversal of 204169001 is 100961402.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146773225 + 57395776 = 12115^2 + 7576^2 .

It is a cyclic number.

It is not a de Polignac number, because 204169001 - 2¹⁴ = 204152617 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (204169051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102084500 + 102084501.

It is an arithmetic number, because the mean of its divisors is an integer number (102084501).

Almost surely, 2^204169001 is an apocalyptic number.

It is an amenable number.

204169001 is a deficient number, since it is larger than the sum of its proper divisors (1).

204169001 is an equidigital number, since it uses as much as digits as its factorization.

204169001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 204169001 is about 14288.7718506525. The cubic root of 204169001 is about 588.8390471496.

The spelling of 204169001 in words is "two hundred four million, one hundred sixty-nine thousand, one".