1340130241 has 2 divisors, whose sum is σ = 1340130242. Its totient is φ = 1340130240.

The previous prime is 1340130229. The next prime is 1340130251. The reversal of 1340130241 is 1420310431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 899760016 + 440370225 = 29996^2 + 20985^2 .

It is an emirp because it is prime and its reverse (1420310431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1340130241 - 2²⁹ = 803259329 is a prime.

It is not a weakly prime, because it can be changed into another prime (1340130221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670065120 + 670065121.

It is an arithmetic number, because the mean of its divisors is an integer number (670065121).

Almost surely, 2^1340130241 is an apocalyptic number.

It is an amenable number.

1340130241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340130241 is an equidigital number, since it uses as much as digits as its factorization.

1340130241 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1340130241 is about 36607.7893487165. The cubic root of 1340130241 is about 1102.5094885231.

Adding to 1340130241 its reverse (1420310431), we get a palindrome (2760440672).

The spelling of 1340130241 in words is "one billion, three hundred forty million, one hundred thirty thousand, two hundred forty-one".