205353423 has 24 divisors (see below), whose sum is σ = 331119360. Its totient is φ = 121559760.

The previous prime is 205353409. The next prime is 205353427. The reversal of 205353423 is 324353502.

205353423 is a `hidden beast` number, since 205 + 35 + 3 + 423 = 666.

It is not a de Polignac number, because 205353423 - 2⁶ = 205353359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205353427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19863 + ... + 28376.

It is an arithmetic number, because the mean of its divisors is an integer number (13796640).

Almost surely, 2^205353423 is an apocalyptic number.

205353423 is a deficient number, since it is larger than the sum of its proper divisors (125765937).

205353423 is a wasteful number, since it uses less digits than its factorization.

205353423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48299 (or 48296 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 27.

The square root of 205353423 is about 14330.1578149021. The cubic root of 205353423 is about 589.9755069790.

The spelling of 205353423 in words is "two hundred five million, three hundred fifty-three thousand, four hundred twenty-three".