1319243 has 4 divisors (see below), whose sum is σ = 1347360. Its totient is φ = 1291128.

The previous prime is 1319209. The next prime is 1319261. The reversal of 1319243 is 3429131.

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

It is a cyclic number.

It is not a de Polignac number, because 1319243 - 2⁸ = 1318987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1319273) 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, 13988 + ... + 14081.

It is an arithmetic number, because the mean of its divisors is an integer number (336840).

2^1319243 is an apocalyptic number.

1319243 is a deficient number, since it is larger than the sum of its proper divisors (28117).

1319243 is an equidigital number, since it uses as much as digits as its factorization.

1319243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28116.

The product of its digits is 648, while the sum is 23.

The square root of 1319243 is about 1148.5830400977. The cubic root of 1319243 is about 109.6751573491.

The spelling of 1319243 in words is "one million, three hundred nineteen thousand, two hundred forty-three".