1340350513 has 2 divisors, whose sum is σ = 1340350514. Its totient is φ = 1340350512.

The previous prime is 1340350489. The next prime is 1340350541. The reversal of 1340350513 is 3150530431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1227311089 + 113039424 = 35033^2 + 10632^2 .

It is a cyclic number.

It is not a de Polignac number, because 1340350513 - 2⁵ = 1340350481 is a prime.

It is not a weakly prime, because it can be changed into another prime (1340350013) 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, 670175256 + 670175257.

It is an arithmetic number, because the mean of its divisors is an integer number (670175257).

Almost surely, 2^1340350513 is an apocalyptic number.

It is an amenable number.

1340350513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340350513 is an equidigital number, since it uses as much as digits as its factorization.

1340350513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 1340350513 is about 36610.7977651403. The cubic root of 1340350513 is about 1102.5698902806.

Adding to 1340350513 its reverse (3150530431), we get a palindrome (4490880944).

The spelling of 1340350513 in words is "one billion, three hundred forty million, three hundred fifty thousand, five hundred thirteen".