71140064 has 24 divisors (see below), whose sum is σ = 142151688. Its totient is φ = 35038080.

The previous prime is 71140063. The next prime is 71140079. The reversal of 71140064 is 46004117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71140063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14447 + ... + 18734.

It is an arithmetic number, because the mean of its divisors is an integer number (5922987).

Almost surely, 2^71140064 is an apocalyptic number.

It is an amenable number.

71140064 is a deficient number, since it is larger than the sum of its proper divisors (71011624).

71140064 is a wasteful number, since it uses less digits than its factorization.

71140064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33258 (or 33250 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 71140064 is about 8434.4569475456. The cubic root of 71140064 is about 414.3538869297.

The spelling of 71140064 in words is "seventy-one million, one hundred forty thousand, sixty-four".