109249 has 4 divisors (see below), whose sum is σ = 124864. Its totient is φ = 93636.

The previous prime is 109229. The next prime is 109253. The reversal of 109249 is 942901.

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 109249 - 2⁷ = 109121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109229) 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, 7797 + ... + 7810.

It is an arithmetic number, because the mean of its divisors is an integer number (31216).

2¹⁰⁹²⁴⁹ is an apocalyptic number.

It is an amenable number.

109249 is a deficient number, since it is larger than the sum of its proper divisors (15615).

109249 is an equidigital number, since it uses as much as digits as its factorization.

109249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15614.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 109249 is about 330.5283648948. The cubic root of 109249 is about 47.8049083736.

The spelling of 109249 in words is "one hundred nine thousand, two hundred forty-nine".