1348081391 has 2 divisors, whose sum is σ = 1348081392. Its totient is φ = 1348081390.

The previous prime is 1348081367. The next prime is 1348081403. The reversal of 1348081391 is 1931808431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1348081391 - 2¹⁸ = 1347819247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1348081591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 674040695 + 674040696.

It is an arithmetic number, because the mean of its divisors is an integer number (674040696).

Almost surely, 2^1348081391 is an apocalyptic number.

1348081391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1348081391 is an equidigital number, since it uses as much as digits as its factorization.

1348081391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 1348081391 is about 36716.2278972119. The cubic root of 1348081391 is about 1104.6856298094.

The spelling of 1348081391 in words is "one billion, three hundred forty-eight million, eighty-one thousand, three hundred ninety-one".