111541842 has 12 divisors (see below), whose sum is σ = 241674030. Its totient is φ = 37180608.

The previous prime is 111541823. The next prime is 111541849. The reversal of 111541842 is 248145111.

It is a happy number.

111541842 is a `hidden beast` number, since 111 + 541 + 8 + 4 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 73977201 + 37564641 = 8601^2 + 6129^2 .

It is not an unprimeable number, because it can be changed into a prime (111541849) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3098367 + ... + 3098402.

Almost surely, 2^111541842 is an apocalyptic number.

111541842 is an abundant number, since it is smaller than the sum of its proper divisors (130132188).

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

111541842 is a wasteful number, since it uses less digits than its factorization.

111541842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6196777 (or 6196774 counting only the distinct ones).

The product of its digits is 1280, while the sum is 27.

The square root of 111541842 is about 10561.3371312538. The cubic root of 111541842 is about 481.3702771951.

Adding to 111541842 its reverse (248145111), we get a palindrome (359686953).

It can be divided in two parts, 11154 and 1842, that added together give a square (12996 = 114²).

The spelling of 111541842 in words is "one hundred eleven million, five hundred forty-one thousand, eight hundred forty-two".