1348870309 has 2 divisors, whose sum is σ = 1348870310. Its totient is φ = 1348870308.

The previous prime is 1348870307. The next prime is 1348870339. The reversal of 1348870309 is 9030788431.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1078925409 + 269944900 = 32847^2 + 16430^2 .

It is a cyclic number.

It is not a de Polignac number, because 1348870309 - 2¹ = 1348870307 is a prime.

It is a super-2 number, since 2×1348870309² = 3638902221003510962, which contains 22 as substring.

Together with 1348870307, 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 (1348870307) 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, 674435154 + 674435155.

It is an arithmetic number, because the mean of its divisors is an integer number (674435155).

Almost surely, 2^1348870309 is an apocalyptic number.

It is an amenable number.

1348870309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1348870309 is an equidigital number, since it uses as much as digits as its factorization.

1348870309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 1348870309 is about 36726.9697769909. The cubic root of 1348870309 is about 1104.9010808033.

The spelling of 1348870309 in words is "one billion, three hundred forty-eight million, eight hundred seventy thousand, three hundred nine".