71471133 has 8 divisors (see below), whose sum is σ = 105883200. Its totient is φ = 47647404.

The previous prime is 71471131. The next prime is 71471171. The reversal of 71471133 is 33117417.

It is not a de Polignac number, because 71471133 - 2¹ = 71471131 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2647079 = 71471133 / (7 + 1 + 4 + 7 + 1 + 1 + 3 + 3).

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 71471097 and 71471106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71471131) 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, 1323513 + ... + 1323566.

It is an arithmetic number, because the mean of its divisors is an integer number (13235400).

Almost surely, 2^71471133 is an apocalyptic number.

It is an amenable number.

71471133 is a deficient number, since it is larger than the sum of its proper divisors (34412067).

71471133 is a wasteful number, since it uses less digits than its factorization.

71471133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2647088 (or 2647082 counting only the distinct ones).

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

The square root of 71471133 is about 8454.0601488279. The cubic root of 71471133 is about 414.9956606698.

The spelling of 71471133 in words is "seventy-one million, four hundred seventy-one thousand, one hundred thirty-three".