111255 has 8 divisors (see below), whose sum is σ = 178032. Its totient is φ = 59328.

The previous prime is 111253. The next prime is 111263. The reversal of 111255 is 552111.

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

It is not a de Polignac number, because 111255 - 2¹ = 111253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 7417 = 111255 / (1 + 1 + 1 + 2 + 5 + 5).

It is a plaindrome in base 10.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111253) 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, 3694 + ... + 3723.

It is an arithmetic number, because the mean of its divisors is an integer number (22254).

2¹¹¹²⁵⁵ is an apocalyptic number.

111255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

111255 is a deficient number, since it is larger than the sum of its proper divisors (66777).

111255 is an equidigital number, since it uses as much as digits as its factorization.

111255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7425.

The product of its digits is 50, while the sum is 15.

The square root of 111255 is about 333.5490968358. The cubic root of 111255 is about 48.0957290941.

Adding to 111255 its reverse (552111), we get a palindrome (663366).

The spelling of 111255 in words is "one hundred eleven thousand, two hundred fifty-five".