71133836 has 12 divisors (see below), whose sum is σ = 125627040. Its totient is φ = 35240400.

The previous prime is 71133827. The next prime is 71133841. The reversal of 71133836 is 63833117.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 81140 + ... + 82011.

It is an arithmetic number, because the mean of its divisors is an integer number (10468920).

Almost surely, 2^71133836 is an apocalyptic number.

It is an amenable number.

71133836 is a deficient number, since it is larger than the sum of its proper divisors (54493204).

71133836 is a wasteful number, since it uses less digits than its factorization.

71133836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163264 (or 163262 counting only the distinct ones).

The product of its digits is 9072, while the sum is 32.

The square root of 71133836 is about 8434.0877396432. The cubic root of 71133836 is about 414.3417949562.

The spelling of 71133836 in words is "seventy-one million, one hundred thirty-three thousand, eight hundred thirty-six".