71215163 has 2 divisors, whose sum is σ = 71215164. Its totient is φ = 71215162.

The previous prime is 71215139. The next prime is 71215187. The reversal of 71215163 is 36151217.

It is a balanced prime because it is at equal distance from previous prime (71215139) and next prime (71215187).

It is a cyclic number.

It is not a de Polignac number, because 71215163 - 2¹² = 71211067 is a prime.

It is a super-2 number, since 2×71215163² = 10143198882233138, which contains 22 as substring.

It is a zygodrome in base 3.

It is not a weakly prime, because it can be changed into another prime (71215663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35607581 + 35607582.

It is an arithmetic number, because the mean of its divisors is an integer number (35607582).

Almost surely, 2^71215163 is an apocalyptic number.

71215163 is a deficient number, since it is larger than the sum of its proper divisors (1).

71215163 is an equidigital number, since it uses as much as digits as its factorization.

71215163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1260, while the sum is 26.

The square root of 71215163 is about 8438.9076899798. The cubic root of 71215163 is about 414.4996398640.

The spelling of 71215163 in words is "seventy-one million, two hundred fifteen thousand, one hundred sixty-three".