71334172 has 24 divisors (see below), whose sum is σ = 153643616. Its totient is φ = 28219968.

The previous prime is 71334169. The next prime is 71334173. The reversal of 71334172 is 27143317.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 71334172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71334173) 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, 97623 + ... + 98350.

Almost surely, 2^71334172 is an apocalyptic number.

It is an amenable number.

71334172 is an abundant number, since it is smaller than the sum of its proper divisors (82309444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71334172 is a wasteful number, since it uses less digits than its factorization.

71334172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195997 (or 195995 counting only the distinct ones).

The product of its digits is 3528, while the sum is 28.

The square root of 71334172 is about 8445.9559553670. The cubic root of 71334172 is about 414.7304040849.

Adding to 71334172 its reverse (27143317), we get a palindrome (98477489).

The spelling of 71334172 in words is "seventy-one million, three hundred thirty-four thousand, one hundred seventy-two".