249275 has 18 divisors (see below), whose sum is σ = 340380. Its totient is φ = 180960.

The previous prime is 249257. The next prime is 249287. The reversal of 249275 is 572942.

It is not a de Polignac number, because 249275 - 2⁶ = 249211 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4196 + ... + 4254.

It is an arithmetic number, because the mean of its divisors is an integer number (18910).

2²⁴⁹²⁷⁵ is an apocalyptic number.

249275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

249275 is a deficient number, since it is larger than the sum of its proper divisors (91105).

249275 is a wasteful number, since it uses less digits than its factorization.

249275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95 (or 77 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 249275 is about 499.2744736115. The cubic root of 249275 is about 62.9350973493.

The spelling of 249275 in words is "two hundred forty-nine thousand, two hundred seventy-five".