71065223 has 2 divisors, whose sum is σ = 71065224. Its totient is φ = 71065222.

The previous prime is 71065199. The next prime is 71065231. The reversal of 71065223 is 32256017.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71065223 - 2²⁰ = 70016647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 71065192 and 71065201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71065723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35532611 + 35532612.

It is an arithmetic number, because the mean of its divisors is an integer number (35532612).

Almost surely, 2^71065223 is an apocalyptic number.

71065223 is a deficient number, since it is larger than the sum of its proper divisors (1).

71065223 is an equidigital number, since it uses as much as digits as its factorization.

71065223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 71065223 is about 8430.0191577481. The cubic root of 71065223 is about 414.2085326408.

The spelling of 71065223 in words is "seventy-one million, sixty-five thousand, two hundred twenty-three".