71321152 has 28 divisors (see below), whose sum is σ = 161747200. Its totient is φ = 30566016.

The previous prime is 71321149. The next prime is 71321161. The reversal of 71321152 is 25112317.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (28).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79152 + ... + 80047.

Almost surely, 2^71321152 is an apocalyptic number.

It is an amenable number.

71321152 is an abundant number, since it is smaller than the sum of its proper divisors (90426048).

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

71321152 is a wasteful number, since it uses less digits than its factorization.

71321152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159218 (or 159208 counting only the distinct ones).

The product of its digits is 420, while the sum is 22.

The square root of 71321152 is about 8445.1851371062. The cubic root of 71321152 is about 414.7051701833.

Adding to 71321152 its reverse (25112317), we get a palindrome (96433469).

The spelling of 71321152 in words is "seventy-one million, three hundred twenty-one thousand, one hundred fifty-two".