254649 has 8 divisors (see below), whose sum is σ = 351360. Its totient is φ = 163856.

The previous prime is 254647. The next prime is 254659. The reversal of 254649 is 946452.

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 254649 - 2¹ = 254647 is a prime.

It is a super-2 number, since 2×254649² = 129692226402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (254647) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1377 + ... + 1550.

It is an arithmetic number, because the mean of its divisors is an integer number (43920).

2²⁵⁴⁶⁴⁹ is an apocalyptic number.

254649 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

254649 is a deficient number, since it is larger than the sum of its proper divisors (96711).

254649 is a wasteful number, since it uses less digits than its factorization.

254649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2959.

The product of its digits is 8640, while the sum is 30.

The square root of 254649 is about 504.6275854529. The cubic root of 254649 is about 63.3841481995.

It can be divided in two parts, 254 and 649, that added together give a triangular number (903 = T₄₂).

The spelling of 254649 in words is "two hundred fifty-four thousand, six hundred forty-nine".