111849 has 8 divisors (see below), whose sum is σ = 155712. Its totient is φ = 71280.

The previous prime is 111847. The next prime is 111857. The reversal of 111849 is 948111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111849 - 2¹ = 111847 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 742 + ... + 879.

It is an arithmetic number, because the mean of its divisors is an integer number (19464).

2¹¹¹⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

111849 is a deficient number, since it is larger than the sum of its proper divisors (43863).

111849 is a wasteful number, since it uses less digits than its factorization.

111849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1647.

The product of its digits is 288, while the sum is 24.

The square root of 111849 is about 334.4383351232. The cubic root of 111849 is about 48.1811729527.

The spelling of 111849 in words is "one hundred eleven thousand, eight hundred forty-nine".