205185023 has 2 divisors, whose sum is σ = 205185024. Its totient is φ = 205185022.

The previous prime is 205184999. The next prime is 205185031. The reversal of 205185023 is 320581502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 205185023 - 2⁸ = 205184767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 205184983 and 205185001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205185523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102592511 + 102592512.

It is an arithmetic number, because the mean of its divisors is an integer number (102592512).

Almost surely, 2^205185023 is an apocalyptic number.

205185023 is a deficient number, since it is larger than the sum of its proper divisors (1).

205185023 is an equidigital number, since it uses as much as digits as its factorization.

205185023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 205185023 is about 14324.2808894548. The cubic root of 205185023 is about 589.8141931424.

The spelling of 205185023 in words is "two hundred five million, one hundred eighty-five thousand, twenty-three".