1113439 has 4 divisors (see below), whose sum is σ = 1118656. Its totient is φ = 1108224.

The previous prime is 1113421. The next prime is 1113451. The reversal of 1113439 is 9343111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1113439 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 (1113239) 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, 2274 + ... + 2719.

It is an arithmetic number, because the mean of its divisors is an integer number (279664).

2^1113439 is an apocalyptic number.

1113439 is a deficient number, since it is larger than the sum of its proper divisors (5217).

1113439 is an equidigital number, since it uses as much as digits as its factorization.

1113439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5216.

The product of its digits is 324, while the sum is 22.

The square root of 1113439 is about 1055.1961902888. The cubic root of 1113439 is about 103.6466993292.

The spelling of 1113439 in words is "one million, one hundred thirteen thousand, four hundred thirty-nine".