1319743 has 2 divisors, whose sum is σ = 1319744. Its totient is φ = 1319742.

The previous prime is 1319741. The next prime is 1319777. The reversal of 1319743 is 3479131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1319743 - 2¹ = 1319741 is a prime.

Together with 1319741, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1319741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 659871 + 659872.

It is an arithmetic number, because the mean of its divisors is an integer number (659872).

2^1319743 is an apocalyptic number.

1319743 is a deficient number, since it is larger than the sum of its proper divisors (1).

1319743 is an equidigital number, since it uses as much as digits as its factorization.

1319743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268, while the sum is 28.

The square root of 1319743 is about 1148.8006789692. The cubic root of 1319743 is about 109.6890114185.

The spelling of 1319743 in words is "one million, three hundred nineteen thousand, seven hundred forty-three".