1394036243 has 2 divisors, whose sum is σ = 1394036244. Its totient is φ = 1394036242.

The previous prime is 1394036197. The next prime is 1394036269. The reversal of 1394036243 is 3426304931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1394036243 - 2⁸ = 1394035987 is a prime.

It is not a weakly prime, because it can be changed into another prime (1394036443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 697018121 + 697018122.

It is an arithmetic number, because the mean of its divisors is an integer number (697018122).

Almost surely, 2^1394036243 is an apocalyptic number.

1394036243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1394036243 is an equidigital number, since it uses as much as digits as its factorization.

1394036243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 35.

The square root of 1394036243 is about 37336.7947606647. The cubic root of 1394036243 is about 1117.0982076141.

The spelling of 1394036243 in words is "one billion, three hundred ninety-four million, thirty-six thousand, two hundred forty-three".