111255142 has 4 divisors (see below), whose sum is σ = 166882716. Its totient is φ = 55627570.

The previous prime is 111255077. The next prime is 111255143. The reversal of 111255142 is 241552111.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111255143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27813784 + ... + 27813787.

It is an arithmetic number, because the mean of its divisors is an integer number (41720679).

Almost surely, 2^111255142 is an apocalyptic number.

111255142 is a deficient number, since it is larger than the sum of its proper divisors (55627574).

111255142 is an equidigital number, since it uses as much as digits as its factorization.

111255142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55627573.

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

The square root of 111255142 is about 10547.7553062251. The cubic root of 111255142 is about 480.9574955634.

The spelling of 111255142 in words is "one hundred eleven million, two hundred fifty-five thousand, one hundred forty-two".