112176721 has 2 divisors, whose sum is σ = 112176722. Its totient is φ = 112176720.

The previous prime is 112176719. The next prime is 112176751. The reversal of 112176721 is 127671211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71216721 + 40960000 = 8439^2 + 6400^2 .

It is an emirp because it is prime and its reverse (127671211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 112176721 - 2¹ = 112176719 is a prime.

Together with 112176719, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 112176721.

It is not a weakly prime, because it can be changed into another prime (112176751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56088360 + 56088361.

It is an arithmetic number, because the mean of its divisors is an integer number (56088361).

Almost surely, 2^112176721 is an apocalyptic number.

It is an amenable number.

112176721 is a deficient number, since it is larger than the sum of its proper divisors (1).

112176721 is an equidigital number, since it uses as much as digits as its factorization.

112176721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1176, while the sum is 28.

The square root of 112176721 is about 10591.3512357961. The cubic root of 112176721 is about 482.2818450558.

The spelling of 112176721 in words is "one hundred twelve million, one hundred seventy-six thousand, seven hundred twenty-one".