1393216259 has 2 divisors, whose sum is σ = 1393216260. Its totient is φ = 1393216258.

The previous prime is 1393216207. The next prime is 1393216261. The reversal of 1393216259 is 9526123931.

It is a strong prime.

It is an emirp because it is prime and its reverse (9526123931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1393216259 - 2⁸ = 1393216003 is a prime.

Together with 1393216261, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1393213259) 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 as a sum of consecutive naturals, namely, 696608129 + 696608130.

It is an arithmetic number, because the mean of its divisors is an integer number (696608130).

Almost surely, 2^1393216259 is an apocalyptic number.

1393216259 is a deficient number, since it is larger than the sum of its proper divisors (1).

1393216259 is an equidigital number, since it uses as much as digits as its factorization.

1393216259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87480, while the sum is 41.

The square root of 1393216259 is about 37325.8122349668. The cubic root of 1393216259 is about 1116.8791357595.

The spelling of 1393216259 in words is "one billion, three hundred ninety-three million, two hundred sixteen thousand, two hundred fifty-nine".