205675161 has 4 divisors (see below), whose sum is σ = 274233552. Its totient is φ = 137116772.

The previous prime is 205675069. The next prime is 205675189. The reversal of 205675161 is 161576502.

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 205675161 - 2¹⁴ = 205658777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205675961) 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, 34279191 + ... + 34279196.

It is an arithmetic number, because the mean of its divisors is an integer number (68558388).

Almost surely, 2^205675161 is an apocalyptic number.

It is an amenable number.

205675161 is a deficient number, since it is larger than the sum of its proper divisors (68558391).

205675161 is an equidigital number, since it uses as much as digits as its factorization.

205675161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68558390.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 205675161 is about 14341.3793269685. The cubic root of 205675161 is about 590.2834614163.

The spelling of 205675161 in words is "two hundred five million, six hundred seventy-five thousand, one hundred sixty-one".