1112399 has 4 divisors (see below), whose sum is σ = 1126560. Its totient is φ = 1098240.

The previous prime is 1112389. The next prime is 1112413. The reversal of 1112399 is 9932111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9932111 = 7 ⋅1418873.

It is a cyclic number.

It is not a de Polignac number, because 1112399 - 2⁴ = 1112383 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10 and base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112339) 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, 6962 + ... + 7119.

It is an arithmetic number, because the mean of its divisors is an integer number (281640).

2^1112399 is an apocalyptic number.

1112399 is a deficient number, since it is larger than the sum of its proper divisors (14161).

1112399 is an equidigital number, since it uses as much as digits as its factorization.

1112399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14160.

The product of its digits is 486, while the sum is 26.

The square root of 1112399 is about 1054.7032758079. The cubic root of 1112399 is about 103.6144191158.

The spelling of 1112399 in words is "one million, one hundred twelve thousand, three hundred ninety-nine".