206454 has 16 divisors (see below), whose sum is σ = 434880. Its totient is φ = 65160.

The previous prime is 206447. The next prime is 206461. The reversal of 206454 is 454602.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (206447) and next prime (206461).

It is a self number, because there is not a number n which added to its sum of digits gives 206454.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 206454.

It is an unprimeable number.

206454 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 792 + ... + 1019.

It is an arithmetic number, because the mean of its divisors is an integer number (27180).

2²⁰⁶⁴⁵⁴ is an apocalyptic number.

206454 is an abundant number, since it is smaller than the sum of its proper divisors (228426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206454 is a wasteful number, since it uses less digits than its factorization.

206454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 206454 is about 454.3720942135. The cubic root of 206454 is about 59.1027606854.

The spelling of 206454 in words is "two hundred six thousand, four hundred fifty-four".