205853073 has 4 divisors (see below), whose sum is σ = 274470768. Its totient is φ = 137235380.

The previous prime is 205852987. The next prime is 205853099. The reversal of 205853073 is 370358502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 205853073 - 2⁹ = 205852561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205853273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34308843 + ... + 34308848.

It is an arithmetic number, because the mean of its divisors is an integer number (68617692).

Almost surely, 2^205853073 is an apocalyptic number.

It is an amenable number.

205853073 is a deficient number, since it is larger than the sum of its proper divisors (68617695).

205853073 is an equidigital number, since it uses as much as digits as its factorization.

205853073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68617694.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 205853073 is about 14347.5807368350. The cubic root of 205853073 is about 590.4536136187.

The spelling of 205853073 in words is "two hundred five million, eight hundred fifty-three thousand, seventy-three".