72316132 has 12 divisors (see below), whose sum is σ = 144632320. Its totient is φ = 30992616.

The previous prime is 72316129. The next prime is 72316133. The reversal of 72316132 is 23161327.

72316132 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 72316097 and 72316106.

It is not an unprimeable number, because it can be changed into a prime (72316133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1291332 + ... + 1291387.

Almost surely, 2^72316132 is an apocalyptic number.

It is an amenable number.

72316132 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

72316132 is a wasteful number, since it uses less digits than its factorization.

72316132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2582730 (or 2582728 counting only the distinct ones).

The product of its digits is 1512, while the sum is 25.

The square root of 72316132 is about 8503.8892278769. The cubic root of 72316132 is about 416.6247470005.

Adding to 72316132 its reverse (23161327), we get a palindrome (95477459).

The spelling of 72316132 in words is "seventy-two million, three hundred sixteen thousand, one hundred thirty-two".