254705 has 12 divisors (see below), whose sum is σ = 336756. Its totient is φ = 184800.

The previous prime is 254699. The next prime is 254713. The reversal of 254705 is 507452.

254705 is nontrivially palindromic in base 15.

It can be written as a sum of positive squares in 2 ways, for example, as 30976 + 223729 = 176^2 + 473^2 .

It is not a de Polignac number, because 254705 - 2¹⁰ = 253681 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 395 + ... + 815.

It is an arithmetic number, because the mean of its divisors is an integer number (28063).

2²⁵⁴⁷⁰⁵ is an apocalyptic number.

It is an amenable number.

254705 is a deficient number, since it is larger than the sum of its proper divisors (82051).

254705 is a wasteful number, since it uses less digits than its factorization.

254705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 254705 is about 504.6830688660. The cubic root of 254705 is about 63.3887941398.

It can be divided in two parts, 254 and 705, that added together give a palindrome (959).

The spelling of 254705 in words is "two hundred fifty-four thousand, seven hundred five".