1405344013 has 2 divisors, whose sum is σ = 1405344014. Its totient is φ = 1405344012.

The previous prime is 1405343977. The next prime is 1405344067. The reversal of 1405344013 is 3104435041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 979251849 + 426092164 = 31293^2 + 20642^2 .

It is an emirp because it is prime and its reverse (3104435041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1405344013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1405344113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702672006 + 702672007.

It is an arithmetic number, because the mean of its divisors is an integer number (702672007).

Almost surely, 2^1405344013 is an apocalyptic number.

It is an amenable number.

1405344013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1405344013 is an equidigital number, since it uses as much as digits as its factorization.

1405344013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1405344013 is about 37487.9182270768. The cubic root of 1405344013 is about 1120.1105367626.

Adding to 1405344013 its reverse (3104435041), we get a palindrome (4509779054).

The spelling of 1405344013 in words is "one billion, four hundred five million, three hundred forty-four thousand, thirteen".