111534642 has 12 divisors (see below), whose sum is σ = 241658430. Its totient is φ = 37178208.

The previous prime is 111534623. The next prime is 111534673. The reversal of 111534642 is 246435111.

It is a happy number.

111534642 is a `hidden beast` number, since 1 + 1 + 15 + 3 + 4 + 642 = 666.

It can be written as a sum of positive squares in only one way, i.e., 94070601 + 17464041 = 9699^2 + 4179^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3098167 + ... + 3098202.

Almost surely, 2^111534642 is an apocalyptic number.

111534642 is an abundant number, since it is smaller than the sum of its proper divisors (130123788).

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

111534642 is a wasteful number, since it uses less digits than its factorization.

111534642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6196377 (or 6196374 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 111534642 is about 10560.9962598232. The cubic root of 111534642 is about 481.3599195257.

Adding to 111534642 its reverse (246435111), we get a palindrome (357969753).

The spelling of 111534642 in words is "one hundred eleven million, five hundred thirty-four thousand, six hundred forty-two".