71913164 has 12 divisors (see below), whose sum is σ = 126024864. Its totient is φ = 35906064.

The previous prime is 71913143. The next prime is 71913167. The reversal of 71913164 is 46131917.

It is a self number, because there is not a number n which added to its sum of digits gives 71913164.

It is not an unprimeable number, because it can be changed into a prime (71913167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9332 + ... + 15195.

It is an arithmetic number, because the mean of its divisors is an integer number (10502072).

Almost surely, 2^71913164 is an apocalyptic number.

It is an amenable number.

71913164 is a deficient number, since it is larger than the sum of its proper divisors (54111700).

71913164 is a wasteful number, since it uses less digits than its factorization.

71913164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25264 (or 25262 counting only the distinct ones).

The product of its digits is 4536, while the sum is 32.

The square root of 71913164 is about 8480.1629701321. The cubic root of 71913164 is about 415.8494508857.

The spelling of 71913164 in words is "seventy-one million, nine hundred thirteen thousand, one hundred sixty-four".