1340310241 has 2 divisors, whose sum is σ = 1340310242. Its totient is φ = 1340310240.

The previous prime is 1340310229. The next prime is 1340310247. The reversal of 1340310241 is 1420130431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1275989841 + 64320400 = 35721^2 + 8020^2 .

It is an emirp because it is prime and its reverse (1420130431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1340310241 - 2¹⁵ = 1340277473 is a prime.

It is not a weakly prime, because it can be changed into another prime (1340310247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670155120 + 670155121.

It is an arithmetic number, because the mean of its divisors is an integer number (670155121).

Almost surely, 2^1340310241 is an apocalyptic number.

It is an amenable number.

1340310241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340310241 is an equidigital number, since it uses as much as digits as its factorization.

1340310241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1340310241 is about 36610.2477593365. The cubic root of 1340310241 is about 1102.5588476121.

Adding to 1340310241 its reverse (1420130431), we get a palindrome (2760440672).

The spelling of 1340310241 in words is "one billion, three hundred forty million, three hundred ten thousand, two hundred forty-one".