249113 has 4 divisors (see below), whose sum is σ = 259968. Its totient is φ = 238260.

The previous prime is 249107. The next prime is 249127. The reversal of 249113 is 311942.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 249113 - 2⁴ = 249097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (249103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5393 + ... + 5438.

It is an arithmetic number, because the mean of its divisors is an integer number (64992).

2²⁴⁹¹¹³ is an apocalyptic number.

249113 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

249113 is a deficient number, since it is larger than the sum of its proper divisors (10855).

249113 is a wasteful number, since it uses less digits than its factorization.

249113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10854.

The product of its digits is 216, while the sum is 20.

The square root of 249113 is about 499.1122118322. The cubic root of 249113 is about 62.9214608766.

The spelling of 249113 in words is "two hundred forty-nine thousand, one hundred thirteen".