112217977 has 2 divisors, whose sum is σ = 112217978. Its totient is φ = 112217976.

The previous prime is 112217939. The next prime is 112217981. The reversal of 112217977 is 779712211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74321641 + 37896336 = 8621^2 + 6156^2 .

It is a cyclic number.

It is not a de Polignac number, because 112217977 - 2¹⁵ = 112185209 is a prime.

It is not a weakly prime, because it can be changed into another prime (112217177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56108988 + 56108989.

It is an arithmetic number, because the mean of its divisors is an integer number (56108989).

Almost surely, 2^112217977 is an apocalyptic number.

It is an amenable number.

112217977 is a deficient number, since it is larger than the sum of its proper divisors (1).

112217977 is an equidigital number, since it uses as much as digits as its factorization.

112217977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12348, while the sum is 37.

The square root of 112217977 is about 10593.2986836018. The cubic root of 112217977 is about 482.3409618402.

It can be divided in two parts, 112 and 217977, that added together give a square (218089 = 467²).

The spelling of 112217977 in words is "one hundred twelve million, two hundred seventeen thousand, nine hundred seventy-seven".