71371147 has 8 divisors (see below), whose sum is σ = 73256400. Its totient is φ = 69510144.

The previous prime is 71371141. The next prime is 71371169. The reversal of 71371147 is 74117317.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71371147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71371141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22 + ... + 11947.

It is an arithmetic number, because the mean of its divisors is an integer number (9157050).

Almost surely, 2^71371147 is an apocalyptic number.

71371147 is a deficient number, since it is larger than the sum of its proper divisors (1885253).

71371147 is a wasteful number, since it uses less digits than its factorization.

71371147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12125.

The product of its digits is 4116, while the sum is 31.

The square root of 71371147 is about 8448.1445891983. The cubic root of 71371147 is about 414.8020481396.

The spelling of 71371147 in words is "seventy-one million, three hundred seventy-one thousand, one hundred forty-seven".