204101389 has 2 divisors, whose sum is σ = 204101390. Its totient is φ = 204101388.

The previous prime is 204101369. The next prime is 204101407. The reversal of 204101389 is 983101402.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148718025 + 55383364 = 12195^2 + 7442^2 .

It is a cyclic number.

It is not a de Polignac number, because 204101389 - 2²⁷ = 69883661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204101309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102050694 + 102050695.

It is an arithmetic number, because the mean of its divisors is an integer number (102050695).

Almost surely, 2^204101389 is an apocalyptic number.

It is an amenable number.

204101389 is a deficient number, since it is larger than the sum of its proper divisors (1).

204101389 is an equidigital number, since it uses as much as digits as its factorization.

204101389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 204101389 is about 14286.4057411233. The cubic root of 204101389 is about 588.7740405766.

The spelling of 204101389 in words is "two hundred four million, one hundred one thousand, three hundred eighty-nine".