1340603413 has 2 divisors, whose sum is σ = 1340603414. Its totient is φ = 1340603412.

The previous prime is 1340603371. The next prime is 1340603417. The reversal of 1340603413 is 3143060431.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1307690244 + 32913169 = 36162^2 + 5737^2 .

It is a cyclic number.

It is not a de Polignac number, because 1340603413 - 2²¹ = 1338506261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1340603417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670301706 + 670301707.

It is an arithmetic number, because the mean of its divisors is an integer number (670301707).

Almost surely, 2^1340603413 is an apocalyptic number.

It is an amenable number.

1340603413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340603413 is an equidigital number, since it uses as much as digits as its factorization.

1340603413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 1340603413 is about 36614.2515012939. The cubic root of 1340603413 is about 1102.6392309461.

Adding to 1340603413 its reverse (3143060431), we get a palindrome (4483663844).

The spelling of 1340603413 in words is "one billion, three hundred forty million, six hundred three thousand, four hundred thirteen".