111444542 has 8 divisors (see below), whose sum is σ = 182363832. Its totient is φ = 50656600.

The previous prime is 111444539. The next prime is 111444581. The reversal of 111444542 is 245444111.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2532809 + ... + 2532852.

It is an arithmetic number, because the mean of its divisors is an integer number (22795479).

Almost surely, 2^111444542 is an apocalyptic number.

111444542 is a deficient number, since it is larger than the sum of its proper divisors (70919290).

111444542 is a wasteful number, since it uses less digits than its factorization.

111444542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5065674.

The product of its digits is 2560, while the sum is 26.

The square root of 111444542 is about 10556.7297019484. The cubic root of 111444542 is about 481.2302670944.

Adding to 111444542 its reverse (245444111), we get a palindrome (356888653).

The spelling of 111444542 in words is "one hundred eleven million, four hundred forty-four thousand, five hundred forty-two".