71651332 has 24 divisors (see below), whose sum is σ = 128727872. Its totient is φ = 34884000.

The previous prime is 71651317. The next prime is 71651339. The reversal of 71651332 is 23315617.

It is a self number, because there is not a number n which added to its sum of digits gives 71651332.

It is not an unprimeable number, because it can be changed into a prime (71651339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23707 + ... + 26557.

Almost surely, 2^71651332 is an apocalyptic number.

It is an amenable number.

71651332 is a deficient number, since it is larger than the sum of its proper divisors (57076540).

71651332 is a wasteful number, since it uses less digits than its factorization.

71651332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3019 (or 3017 counting only the distinct ones).

The product of its digits is 3780, while the sum is 28.

The square root of 71651332 is about 8464.7109814807. The cubic root of 71651332 is about 415.3441418868.

Adding to 71651332 its reverse (23315617), we get a palindrome (94966949).

The spelling of 71651332 in words is "seventy-one million, six hundred fifty-one thousand, three hundred thirty-two".