71164043 has 2 divisors, whose sum is σ = 71164044. Its totient is φ = 71164042.

The previous prime is 71164031. The next prime is 71164099. The reversal of 71164043 is 34046117.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 71164043 - 2⁶ = 71163979 is a prime.

It is a super-2 number, since 2×71164043² = 10128642032211698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (71164243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35582021 + 35582022.

It is an arithmetic number, because the mean of its divisors is an integer number (35582022).

Almost surely, 2^71164043 is an apocalyptic number.

71164043 is a deficient number, since it is larger than the sum of its proper divisors (1).

71164043 is an equidigital number, since it uses as much as digits as its factorization.

71164043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 71164043 is about 8435.8783182310. The cubic root of 71164043 is about 414.4004367694.

The spelling of 71164043 in words is "seventy-one million, one hundred sixty-four thousand, forty-three".