338722513 has 2 divisors, whose sum is σ = 338722514. Its totient is φ = 338722512.

The previous prime is 338722493. The next prime is 338722577. The reversal of 338722513 is 315227833.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 298183824 + 40538689 = 17268^2 + 6367^2 .

It is an emirp because it is prime and its reverse (315227833) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-338722513 is a prime.

It is a super-2 number, since 2×338722513² = 229465881626070338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (338722613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169361256 + 169361257.

It is an arithmetic number, because the mean of its divisors is an integer number (169361257).

Almost surely, 2^338722513 is an apocalyptic number.

It is an amenable number.

338722513 is a deficient number, since it is larger than the sum of its proper divisors (1).

338722513 is an equidigital number, since it uses as much as digits as its factorization.

338722513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 34.

The square root of 338722513 is about 18404.4155843102. The cubic root of 338722513 is about 697.0779643094.

The spelling of 338722513 in words is "three hundred thirty-eight million, seven hundred twenty-two thousand, five hundred thirteen".