254279317 has 4 divisors (see below), whose sum is σ = 256797036. Its totient is φ = 251761600.

The previous prime is 254279309. The next prime is 254279351. The reversal of 254279317 is 713972452.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 220997956 + 33281361 = 14866^2 + 5769^2 .

It is a cyclic number.

It is not a de Polignac number, because 254279317 - 2³ = 254279309 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 254279317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254279617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1258708 + ... + 1258909.

It is an arithmetic number, because the mean of its divisors is an integer number (64199259).

Almost surely, 2^254279317 is an apocalyptic number.

It is an amenable number.

254279317 is a deficient number, since it is larger than the sum of its proper divisors (2517719).

254279317 is a wasteful number, since it uses less digits than its factorization.

254279317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2517718.

The product of its digits is 105840, while the sum is 40.

The square root of 254279317 is about 15946.1379963927. The cubic root of 254279317 is about 633.5346100492.

The spelling of 254279317 in words is "two hundred fifty-four million, two hundred seventy-nine thousand, three hundred seventeen".