111152142 has 16 divisors (see below), whose sum is σ = 247004880. Its totient is φ = 37050696.

The previous prime is 111152101. The next prime is 111152159. The reversal of 111152142 is 241251111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1029133 + ... + 1029240.

It is an arithmetic number, because the mean of its divisors is an integer number (15437805).

Almost surely, 2^111152142 is an apocalyptic number.

111152142 is an abundant number, since it is smaller than the sum of its proper divisors (135852738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111152142 is a wasteful number, since it uses less digits than its factorization.

111152142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2058384 (or 2058378 counting only the distinct ones).

The product of its digits is 80, while the sum is 18.

The square root of 111152142 is about 10542.8716201991. The cubic root of 111152142 is about 480.8090262683.

The spelling of 111152142 in words is "one hundred eleven million, one hundred fifty-two thousand, one hundred forty-two".