1378713353 has 2 divisors, whose sum is σ = 1378713354. Its totient is φ = 1378713352.

The previous prime is 1378713341. The next prime is 1378713373. The reversal of 1378713353 is 3533178731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1047946384 + 330766969 = 32372^2 + 18187^2 .

It is a cyclic number.

It is not a de Polignac number, because 1378713353 - 2⁸ = 1378713097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1378713353.

It is not a weakly prime, because it can be changed into another prime (1378713373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 689356676 + 689356677.

It is an arithmetic number, because the mean of its divisors is an integer number (689356677).

Almost surely, 2^1378713353 is an apocalyptic number.

It is an amenable number.

1378713353 is a deficient number, since it is larger than the sum of its proper divisors (1).

1378713353 is an equidigital number, since it uses as much as digits as its factorization.

1378713353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 41.

The square root of 1378713353 is about 37131.0295171033. The cubic root of 1378713353 is about 1112.9901664952.

The spelling of 1378713353 in words is "one billion, three hundred seventy-eight million, seven hundred thirteen thousand, three hundred fifty-three".