112978945 has 16 divisors (see below), whose sum is σ = 139645440. Its totient is φ = 87683904.

The previous prime is 112978939. The next prime is 112978993. The reversal of 112978945 is 549879211.

It is a cyclic number.

It is not a de Polignac number, because 112978945 - 2³ = 112978937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112978895 and 112978904.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84996 + ... + 86314.

It is an arithmetic number, because the mean of its divisors is an integer number (8727840).

Almost surely, 2^112978945 is an apocalyptic number.

It is an amenable number.

112978945 is a deficient number, since it is larger than the sum of its proper divisors (26666495).

112978945 is a wasteful number, since it uses less digits than its factorization.

112978945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824.

The product of its digits is 181440, while the sum is 46.

The square root of 112978945 is about 10629.1554227041. The cubic root of 112978945 is about 483.4287836327.

The spelling of 112978945 in words is "one hundred twelve million, nine hundred seventy-eight thousand, nine hundred forty-five".