254017 has 4 divisors (see below), whose sum is σ = 255060. Its totient is φ = 252976.

The previous prime is 254003. The next prime is 254021. The reversal of 254017 is 710452.

It is a Cunningham number, because it is equal to 504²+1.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 59536 + 194481 = 244^2 + 441^2 .

It is a cyclic number.

It is not a de Polignac number, because 254017 - 2¹¹ = 251969 is a prime.

It is a Duffinian number.

254017 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 253985 and 254003.

It is not an unprimeable number, because it can be changed into a prime (254027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63 + ... + 715.

It is an arithmetic number, because the mean of its divisors is an integer number (63765).

254017 is a Friedman number, since it can be written as 504^2+1^7, using all its digits and the basic arithmetic operations.

2²⁵⁴⁰¹⁷ is an apocalyptic number.

It is an amenable number.

254017 is a deficient number, since it is larger than the sum of its proper divisors (1043).

254017 is an equidigital number, since it uses as much as digits as its factorization.

254017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 254017 is about 504.0009920625. Note that the first 3 decimals coincide. The cubic root of 254017 is about 63.3316681618.

Adding to 254017 its reverse (710452), we get a palindrome (964469).

The spelling of 254017 in words is "two hundred fifty-four thousand, seventeen".