1112439 has 4 divisors (see below), whose sum is σ = 1483256. Its totient is φ = 741624.

The previous prime is 1112413. The next prime is 1112467. The reversal of 1112439 is 9342111.

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

It is not a de Polignac number, because 1112439 - 2¹³ = 1104247 is a prime.

It is a D-number.

It is a Duffinian number.

1112439 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185404 + ... + 185409.

It is an arithmetic number, because the mean of its divisors is an integer number (370814).

2^1112439 is an apocalyptic number.

1112439 is a deficient number, since it is larger than the sum of its proper divisors (370817).

1112439 is an equidigital number, since it uses as much as digits as its factorization.

1112439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370816.

The product of its digits is 216, while the sum is 21.

The square root of 1112439 is about 1054.7222383168. The cubic root of 1112439 is about 103.6156610344.

It can be divided in two parts, 1112 and 439, that added together give a palindrome (1551).

The spelling of 1112439 in words is "one million, one hundred twelve thousand, four hundred thirty-nine".