71338361 has 2 divisors, whose sum is σ = 71338362. Its totient is φ = 71338360.

The previous prime is 71338349. The next prime is 71338363. The reversal of 71338361 is 16383317.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66520336 + 4818025 = 8156^2 + 2195^2 .

It is a cyclic number.

It is not a de Polignac number, because 71338361 - 2¹⁰ = 71337337 is a prime.

Together with 71338363, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (71338363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35669180 + 35669181.

It is an arithmetic number, because the mean of its divisors is an integer number (35669181).

Almost surely, 2^71338361 is an apocalyptic number.

It is an amenable number.

71338361 is a deficient number, since it is larger than the sum of its proper divisors (1).

71338361 is an equidigital number, since it uses as much as digits as its factorization.

71338361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 32.

The square root of 71338361 is about 8446.2039402326. The cubic root of 71338361 is about 414.7385220813.

The spelling of 71338361 in words is "seventy-one million, three hundred thirty-eight thousand, three hundred sixty-one".