112720897 has 4 divisors (see below), whose sum is σ = 119351556. Its totient is φ = 106090240.

The previous prime is 112720891. The next prime is 112720943. The reversal of 112720897 is 798027211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 106007616 + 6713281 = 10296^2 + 2591^2 .

It is a cyclic number.

It is not a de Polignac number, because 112720897 - 2²³ = 104332289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112720891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3315304 + ... + 3315337.

It is an arithmetic number, because the mean of its divisors is an integer number (29837889).

Almost surely, 2^112720897 is an apocalyptic number.

112720897 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

112720897 is a deficient number, since it is larger than the sum of its proper divisors (6630659).

112720897 is an equidigital number, since it uses as much as digits as its factorization.

112720897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6630658.

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 112720897 is about 10617.0097956063. The cubic root of 112720897 is about 483.0604467783.

The spelling of 112720897 in words is "one hundred twelve million, seven hundred twenty thousand, eight hundred ninety-seven".