1339243 has 4 divisors (see below), whose sum is σ = 1418040. Its totient is φ = 1260448.

The previous prime is 1339229. The next prime is 1339259. The reversal of 1339243 is 3429331.

It is a happy number.

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

It is not a de Polignac number, because 1339243 - 2⁵ = 1339211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1339223) 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, 39373 + ... + 39406.

It is an arithmetic number, because the mean of its divisors is an integer number (354510).

2^1339243 is an apocalyptic number.

1339243 is a deficient number, since it is larger than the sum of its proper divisors (78797).

1339243 is an equidigital number, since it uses as much as digits as its factorization.

1339243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78796.

The product of its digits is 1944, while the sum is 25.

The square root of 1339243 is about 1157.2566698879. The cubic root of 1339243 is about 110.2266127208.

The spelling of 1339243 in words is "one million, three hundred thirty-nine thousand, two hundred forty-three".