112009978 has 16 divisors (see below), whose sum is σ = 178215840. Its totient is φ = 52650000.

The previous prime is 112009939. The next prime is 112009981. The reversal of 112009978 is 879900211.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6273 + ... + 16228.

It is an arithmetic number, because the mean of its divisors is an integer number (11138490).

Almost surely, 2^112009978 is an apocalyptic number.

112009978 is a deficient number, since it is larger than the sum of its proper divisors (66205862).

112009978 is a wasteful number, since it uses less digits than its factorization.

112009978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22653.

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 112009978 is about 10583.4766499483. The cubic root of 112009978 is about 482.0427669335.

The spelling of 112009978 in words is "one hundred twelve million, nine thousand, nine hundred seventy-eight".