205654 has 12 divisors (see below), whose sum is σ = 321732. Its totient is φ = 98580.

The previous prime is 205651. The next prime is 205657. The reversal of 205654 is 456502.

205654 is nontrivially palindromic in base 15.

205654 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (205651) and next prime (205657).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1869 + ... + 1975.

It is an arithmetic number, because the mean of its divisors is an integer number (26811).

2²⁰⁵⁶⁵⁴ is an apocalyptic number.

205654 is a deficient number, since it is larger than the sum of its proper divisors (116078).

205654 is a wasteful number, since it uses less digits than its factorization.

205654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 205654 is about 453.4909039882. The cubic root of 205654 is about 59.0263216844.

The spelling of 205654 in words is "two hundred five thousand, six hundred fifty-four".