1338117377 has 2 divisors, whose sum is σ = 1338117378. Its totient is φ = 1338117376.

The previous prime is 1338117371. The next prime is 1338117397. The reversal of 1338117377 is 7737118331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 788261776 + 549855601 = 28076^2 + 23449^2 .

It is an emirp because it is prime and its reverse (7737118331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1338117377 - 2¹² = 1338113281 is a prime.

It is a super-2 number, since 2×1338117377² = 3581116229258720258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1338117371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669058688 + 669058689.

It is an arithmetic number, because the mean of its divisors is an integer number (669058689).

Almost surely, 2^1338117377 is an apocalyptic number.

It is an amenable number.

1338117377 is a deficient number, since it is larger than the sum of its proper divisors (1).

1338117377 is an equidigital number, since it uses as much as digits as its factorization.

1338117377 is an evil number, because the sum of its binary digits is even.

The product of its digits is 74088, while the sum is 41.

The square root of 1338117377 is about 36580.2867265963. The cubic root of 1338117377 is about 1101.9572253690.

The spelling of 1338117377 in words is "one billion, three hundred thirty-eight million, one hundred seventeen thousand, three hundred seventy-seven".