71064173 has 2 divisors, whose sum is σ = 71064174. Its totient is φ = 71064172.

The previous prime is 71064127. The next prime is 71064269. The reversal of 71064173 is 37146017.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62694724 + 8369449 = 7918^2 + 2893^2 .

It is a cyclic number.

It is not a de Polignac number, because 71064173 - 2⁸ = 71063917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71064373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35532086 + 35532087.

It is an arithmetic number, because the mean of its divisors is an integer number (35532087).

Almost surely, 2^71064173 is an apocalyptic number.

It is an amenable number.

71064173 is a deficient number, since it is larger than the sum of its proper divisors (1).

71064173 is an equidigital number, since it uses as much as digits as its factorization.

71064173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 71064173 is about 8429.9568800795. The cubic root of 71064173 is about 414.2064926317.

The spelling of 71064173 in words is "seventy-one million, sixty-four thousand, one hundred seventy-three".