204264121 has 2 divisors, whose sum is σ = 204264122. Its totient is φ = 204264120.

The previous prime is 204264103. The next prime is 204264131. The reversal of 204264121 is 121462402.

It is a happy number.

204264121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164762896 + 39501225 = 12836^2 + 6285^2 .

It is a cyclic number.

It is not a de Polignac number, because 204264121 - 2¹⁷ = 204133049 is a prime.

It is a super-2 number, since 2×204264121² = 83447662255805282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 204264092 and 204264101.

It is not a weakly prime, because it can be changed into another prime (204264101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102132060 + 102132061.

It is an arithmetic number, because the mean of its divisors is an integer number (102132061).

Almost surely, 2^204264121 is an apocalyptic number.

It is an amenable number.

204264121 is a deficient number, since it is larger than the sum of its proper divisors (1).

204264121 is an equidigital number, since it uses as much as digits as its factorization.

204264121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 204264121 is about 14292.0999506720. The cubic root of 204264121 is about 588.9304774091.

The spelling of 204264121 in words is "two hundred four million, two hundred sixty-four thousand, one hundred twenty-one".