111996842 has 4 divisors (see below), whose sum is σ = 167995266. Its totient is φ = 55998420.

The previous prime is 111996823. The next prime is 111996877. The reversal of 111996842 is 248699111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 108972721 + 3024121 = 10439^2 + 1739^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 111996842.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27999209 + ... + 27999212.

Almost surely, 2^111996842 is an apocalyptic number.

111996842 is a deficient number, since it is larger than the sum of its proper divisors (55998424).

111996842 is an equidigital number, since it uses as much as digits as its factorization.

111996842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55998423.

The product of its digits is 31104, while the sum is 41.

The square root of 111996842 is about 10582.8560417309. The cubic root of 111996842 is about 482.0239222989.

The spelling of 111996842 in words is "one hundred eleven million, nine hundred ninety-six thousand, eight hundred forty-two".