204355223 has 2 divisors, whose sum is σ = 204355224. Its totient is φ = 204355222.

The previous prime is 204355211. The next prime is 204355231. The reversal of 204355223 is 322553402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 204355223 - 2²⁴ = 187578007 is a prime.

It is a super-2 number, since 2×204355223² = 83522114334759458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 204355192 and 204355201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204355243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102177611 + 102177612.

It is an arithmetic number, because the mean of its divisors is an integer number (102177612).

Almost surely, 2^204355223 is an apocalyptic number.

204355223 is a deficient number, since it is larger than the sum of its proper divisors (1).

204355223 is an equidigital number, since it uses as much as digits as its factorization.

204355223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 204355223 is about 14295.2867407408. The cubic root of 204355223 is about 589.0180189210.

The spelling of 204355223 in words is "two hundred four million, three hundred fifty-five thousand, two hundred twenty-three".