111142444 has 24 divisors (see below), whose sum is σ = 227456768. Its totient is φ = 46524240.

The previous prime is 111142439. The next prime is 111142453. The reversal of 111142444 is 444241111.

It is a nude number because it is divisible by every one of its digits.

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, 44952 + ... + 47359.

Almost surely, 2^111142444 is an apocalyptic number.

111142444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

111142444 is an abundant number, since it is smaller than the sum of its proper divisors (116314324).

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

111142444 is a wasteful number, since it uses less digits than its factorization.

111142444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92365 (or 92363 counting only the distinct ones).

The product of its digits is 512, while the sum is 22.

The square root of 111142444 is about 10542.4116785487. The cubic root of 111142444 is about 480.7950423676.

Adding to 111142444 its reverse (444241111), we get a palindrome (555383555).

The spelling of 111142444 in words is "one hundred eleven million, one hundred forty-two thousand, four hundred forty-four".