1238448713 has 2 divisors, whose sum is σ = 1238448714. Its totient is φ = 1238448712.

The previous prime is 1238448707. The next prime is 1238448733. The reversal of 1238448713 is 3178448321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1107758089 + 130690624 = 33283^2 + 11432^2 .

It is a cyclic number.

It is not a de Polignac number, because 1238448713 - 2⁸ = 1238448457 is a prime.

It is not a weakly prime, because it can be changed into another prime (1238448733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 619224356 + 619224357.

It is an arithmetic number, because the mean of its divisors is an integer number (619224357).

Almost surely, 2^1238448713 is an apocalyptic number.

It is an amenable number.

1238448713 is a deficient number, since it is larger than the sum of its proper divisors (1).

1238448713 is an equidigital number, since it uses as much as digits as its factorization.

1238448713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 41.

The square root of 1238448713 is about 35191.6000346674. The cubic root of 1238448713 is about 1073.8888719001. Note that the first 4 decimals are identical.

The spelling of 1238448713 in words is "one billion, two hundred thirty-eight million, four hundred forty-eight thousand, seven hundred thirteen".