1243339 has 4 divisors (see below), whose sum is σ = 1254456. Its totient is φ = 1232224.

The previous prime is 1243337. The next prime is 1243343. The reversal of 1243339 is 9333421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9333421 = 311 ⋅30011.

It is a cyclic number.

It is not a de Polignac number, because 1243339 - 2¹ = 1243337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1243337) 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, 5389 + ... + 5614.

It is an arithmetic number, because the mean of its divisors is an integer number (313614).

2^1243339 is an apocalyptic number.

1243339 is a deficient number, since it is larger than the sum of its proper divisors (11117).

1243339 is a wasteful number, since it uses less digits than its factorization.

1243339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11116.

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

The square root of 1243339 is about 1115.0511199044. The cubic root of 1243339 is about 107.5300510902.

The spelling of 1243339 in words is "one million, two hundred forty-three thousand, three hundred thirty-nine".