71436164 has 12 divisors (see below), whose sum is σ = 129324300. Its totient is φ = 34486368.

The previous prime is 71436163. The next prime is 71436179. The reversal of 71436164 is 46163417.

It can be written as a sum of positive squares in 2 ways, for example, as 53728900 + 17707264 = 7330^2 + 4208^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 71436164.

It is not an unprimeable number, because it can be changed into a prime (71436163) 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, 307799 + ... + 308030.

It is an arithmetic number, because the mean of its divisors is an integer number (10777025).

Almost surely, 2^71436164 is an apocalyptic number.

It is an amenable number.

71436164 is a deficient number, since it is larger than the sum of its proper divisors (57888136).

71436164 is a wasteful number, since it uses less digits than its factorization.

71436164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615862 (or 615860 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 71436164 is about 8451.9917179325. The cubic root of 71436164 is about 414.9279673691.

The spelling of 71436164 in words is "seventy-one million, four hundred thirty-six thousand, one hundred sixty-four".