1112543999 has 8 divisors (see below), whose sum is σ = 1271905440. Its totient is φ = 953289216.

The previous prime is 1112543969. The next prime is 1112544001. The reversal of 1112543999 is 9993452111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1112543999 - 2²⁴ = 1095766783 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 (1112543969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2894 + ... + 47259.

It is an arithmetic number, because the mean of its divisors is an integer number (158988180).

Almost surely, 2^1112543999 is an apocalyptic number.

1112543999 is a deficient number, since it is larger than the sum of its proper divisors (159361441).

1112543999 is an equidigital number, since it uses as much as digits as its factorization.

1112543999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53329.

The product of its digits is 87480, while the sum is 44.

The square root of 1112543999 is about 33354.8197266902. The cubic root of 1112543999 is about 1036.1892089808.

The spelling of 1112543999 in words is "one billion, one hundred twelve million, five hundred forty-three thousand, nine hundred ninety-nine".