112166399 has 4 divisors (see below), whose sum is σ = 113159136. Its totient is φ = 111173664.

The previous prime is 112166387. The next prime is 112166419. The reversal of 112166399 is 993661211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 993661211 = 389 ⋅2554399.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112166399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112166599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496199 + ... + 496424.

It is an arithmetic number, because the mean of its divisors is an integer number (28289784).

Almost surely, 2^112166399 is an apocalyptic number.

112166399 is a deficient number, since it is larger than the sum of its proper divisors (992737).

112166399 is an equidigital number, since it uses as much as digits as its factorization.

112166399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992736.

The product of its digits is 17496, while the sum is 38.

The square root of 112166399 is about 10590.8639402081. The cubic root of 112166399 is about 482.2670521295.

The spelling of 112166399 in words is "one hundred twelve million, one hundred sixty-six thousand, three hundred ninety-nine".