112428899 has 18 divisors (see below), whose sum is σ = 129143196. Its totient is φ = 97060920.

The previous prime is 112428889. The next prime is 112428907. The reversal of 112428899 is 998824211.

It is a de Polignac number, because none of the positive numbers 2^k-112428899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112428809) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 808772 + ... + 808910.

It is an arithmetic number, because the mean of its divisors is an integer number (7174622).

Almost surely, 2^112428899 is an apocalyptic number.

112428899 is a deficient number, since it is larger than the sum of its proper divisors (16714297).

112428899 is an equidigital number, since it uses as much as digits as its factorization.

112428899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335 (or 173 counting only the distinct ones).

The product of its digits is 82944, while the sum is 44.

The square root of 112428899 is about 10603.2494547662. The cubic root of 112428899 is about 482.6429712247.

Multiplying 112428899 by its sum of digits (44), we get a square (4946871556 = 70334²).

The spelling of 112428899 in words is "one hundred twelve million, four hundred twenty-eight thousand, eight hundred ninety-nine".