111142255 has 16 divisors (see below), whose sum is σ = 152631360. Its totient is φ = 76108032.

The previous prime is 111142237. The next prime is 111142259. The reversal of 111142255 is 552241111.

It is not a de Polignac number, because 111142255 - 2⁷ = 111142127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111142259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31101 + ... + 34489.

It is an arithmetic number, because the mean of its divisors is an integer number (9539460).

Almost surely, 2^111142255 is an apocalyptic number.

111142255 is a deficient number, since it is larger than the sum of its proper divisors (41489105).

111142255 is an equidigital number, since it uses as much as digits as its factorization.

111142255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4338.

The product of its digits is 400, while the sum is 22.

The square root of 111142255 is about 10542.4027147515. The cubic root of 111142255 is about 480.7947698335.

Adding to 111142255 its reverse (552241111), we get a palindrome (663383366).

The spelling of 111142255 in words is "one hundred eleven million, one hundred forty-two thousand, two hundred fifty-five".