71371361 has 2 divisors, whose sum is σ = 71371362. Its totient is φ = 71371360.

The previous prime is 71371351. The next prime is 71371367. The reversal of 71371361 is 16317317.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71301136 + 70225 = 8444^2 + 265^2 .

It is a cyclic number.

It is not a de Polignac number, because 71371361 - 2²² = 67177057 is a prime.

It is not a weakly prime, because it can be changed into another prime (71371367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35685680 + 35685681.

It is an arithmetic number, because the mean of its divisors is an integer number (35685681).

Almost surely, 2^71371361 is an apocalyptic number.

It is an amenable number.

71371361 is a deficient number, since it is larger than the sum of its proper divisors (1).

71371361 is an equidigital number, since it uses as much as digits as its factorization.

71371361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2646, while the sum is 29.

The square root of 71371361 is about 8448.1572546917. The cubic root of 71371361 is about 414.8024627214.

Adding to 71371361 its reverse (16317317), we get a palindrome (87688678).

The spelling of 71371361 in words is "seventy-one million, three hundred seventy-one thousand, three hundred sixty-one".