205004269 has 2 divisors, whose sum is σ = 205004270. Its totient is φ = 205004268.

The previous prime is 205004231. The next prime is 205004279. The reversal of 205004269 is 962400502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 186186025 + 18818244 = 13645^2 + 4338^2 .

It is a cyclic number.

It is not a de Polignac number, because 205004269 - 2¹¹ = 205002221 is a prime.

It is a super-2 number, since 2×205004269² = 84053500616448722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205004279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102502134 + 102502135.

It is an arithmetic number, because the mean of its divisors is an integer number (102502135).

Almost surely, 2^205004269 is an apocalyptic number.

It is an amenable number.

205004269 is a deficient number, since it is larger than the sum of its proper divisors (1).

205004269 is an equidigital number, since it uses as much as digits as its factorization.

205004269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 205004269 is about 14317.9701424469. The cubic root of 205004269 is about 589.6409469113.

The spelling of 205004269 in words is "two hundred five million, four thousand, two hundred sixty-nine".