249118 has 12 divisors (see below), whose sum is σ = 397872. Its totient is φ = 116960.

The previous prime is 249107. The next prime is 249127. The reversal of 249118 is 811942.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 249092 and 249101.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 363 + ... + 793.

It is an arithmetic number, because the mean of its divisors is an integer number (33156).

2²⁴⁹¹¹⁸ is an apocalyptic number.

249118 is a deficient number, since it is larger than the sum of its proper divisors (148754).

249118 is a wasteful number, since it uses less digits than its factorization.

249118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467 (or 450 counting only the distinct ones).

The product of its digits is 576, while the sum is 25.

The square root of 249118 is about 499.1172207007. The cubic root of 249118 is about 62.9218818438.

The spelling of 249118 in words is "two hundred forty-nine thousand, one hundred eighteen".