111873802 has 4 divisors (see below), whose sum is σ = 167810706. Its totient is φ = 55936900.

The previous prime is 111873779. The next prime is 111873847. The reversal of 111873802 is 208378111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 208378111 = 19 ⋅10967269.

It can be written as a sum of positive squares in only one way, i.e., 72948681 + 38925121 = 8541^2 + 6239^2 .

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 as a sum of consecutive naturals, namely, 27968449 + ... + 27968452.

Almost surely, 2^111873802 is an apocalyptic number.

111873802 is a deficient number, since it is larger than the sum of its proper divisors (55936904).

111873802 is an equidigital number, since it uses as much as digits as its factorization.

111873802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55936903.

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 111873802 is about 10577.0412687103. The cubic root of 111873802 is about 481.8473400717.

The spelling of 111873802 in words is "one hundred eleven million, eight hundred seventy-three thousand, eight hundred two".