112748721 has 16 divisors (see below), whose sum is σ = 152866560. Its totient is φ = 73906560.

The previous prime is 112748711. The next prime is 112748749. The reversal of 112748721 is 127847211.

It is not a de Polignac number, because 112748721 - 2⁷ = 112748593 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (112748711) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 65751 + ... + 67443.

It is an arithmetic number, because the mean of its divisors is an integer number (9554160).

Almost surely, 2^112748721 is an apocalyptic number.

It is an amenable number.

112748721 is a deficient number, since it is larger than the sum of its proper divisors (40117839).

112748721 is a wasteful number, since it uses less digits than its factorization.

112748721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056.

The product of its digits is 6272, while the sum is 33.

The square root of 112748721 is about 10618.3200648690. The cubic root of 112748721 is about 483.1001896846.

The spelling of 112748721 in words is "one hundred twelve million, seven hundred forty-eight thousand, seven hundred twenty-one".