71164855 has 4 divisors (see below), whose sum is σ = 85397832. Its totient is φ = 56931880.

The previous prime is 71164799. The next prime is 71164867. The reversal of 71164855 is 55846117.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 71164855 - 2⁹ = 71164343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7116481 + ... + 7116490.

It is an arithmetic number, because the mean of its divisors is an integer number (21349458).

Almost surely, 2^71164855 is an apocalyptic number.

71164855 is a deficient number, since it is larger than the sum of its proper divisors (14232977).

71164855 is a wasteful number, since it uses less digits than its factorization.

71164855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14232976.

The product of its digits is 33600, while the sum is 37.

The square root of 71164855 is about 8435.9264458624. The cubic root of 71164855 is about 414.4020129019.

The spelling of 71164855 in words is "seventy-one million, one hundred sixty-four thousand, eight hundred fifty-five".