254813 has 8 divisors (see below), whose sum is σ = 290808. Its totient is φ = 221184.

The previous prime is 254803. The next prime is 254827. The reversal of 254813 is 318452.

It can be written as a sum of positive squares in 4 ways, for example, as 58564 + 196249 = 242^2 + 443^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 254813 - 2⁸ = 254557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356 + ... + 797.

It is an arithmetic number, because the mean of its divisors is an integer number (36351).

2²⁵⁴⁸¹³ is an apocalyptic number.

It is an amenable number.

254813 is a deficient number, since it is larger than the sum of its proper divisors (35995).

254813 is a wasteful number, since it uses less digits than its factorization.

254813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183.

The product of its digits is 960, while the sum is 23.

The square root of 254813 is about 504.7900553696. The cubic root of 254813 is about 63.3977522448.

It can be divided in two parts, 2548 and 13, that multiplied together give a square (33124 = 182²).

The spelling of 254813 in words is "two hundred fifty-four thousand, eight hundred thirteen".