71313147 has 36 divisors (see below), whose sum is σ = 111965256. Its totient is φ = 43585920.

The previous prime is 71313127. The next prime is 71313163. The reversal of 71313147 is 74131317.

It is not a de Polignac number, because 71313147 - 2⁶ = 71313083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71313147.

It is not an unprimeable number, because it can be changed into a prime (71313107) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 337872 + ... + 338082.

It is an arithmetic number, because the mean of its divisors is an integer number (3110146).

Almost surely, 2^71313147 is an apocalyptic number.

71313147 is a deficient number, since it is larger than the sum of its proper divisors (40652109).

71313147 is a wasteful number, since it uses less digits than its factorization.

71313147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 278 counting only the distinct ones).

The product of its digits is 1764, while the sum is 27.

The square root of 71313147 is about 8444.7111851146. The cubic root of 71313147 is about 414.6896542669.

The spelling of 71313147 in words is "seventy-one million, three hundred thirteen thousand, one hundred forty-seven".