71312332 has 24 divisors (see below), whose sum is σ = 153596576. Its totient is φ = 28211328.

The previous prime is 71312327. The next prime is 71312341. The reversal of 71312332 is 23321317.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97593 + ... + 98320.

Almost surely, 2^71312332 is an apocalyptic number.

It is an amenable number.

71312332 is an abundant number, since it is smaller than the sum of its proper divisors (82284244).

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

71312332 is a wasteful number, since it uses less digits than its factorization.

71312332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195937 (or 195935 counting only the distinct ones).

The product of its digits is 756, while the sum is 22.

The square root of 71312332 is about 8444.6629299221. The cubic root of 71312332 is about 414.6880745051.

Adding to 71312332 its reverse (23321317), we get a palindrome (94633649).

The spelling of 71312332 in words is "seventy-one million, three hundred twelve thousand, three hundred thirty-two".