71443532 has 6 divisors (see below), whose sum is σ = 125026188. Its totient is φ = 35721764.

The previous prime is 71443531. The next prime is 71443549. The reversal of 71443532 is 23534417.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 71443495 and 71443504.

It is not an unprimeable number, because it can be changed into a prime (71443531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8930438 + ... + 8930445.

It is an arithmetic number, because the mean of its divisors is an integer number (20837698).

Almost surely, 2^71443532 is an apocalyptic number.

It is an amenable number.

71443532 is a deficient number, since it is larger than the sum of its proper divisors (53582656).

71443532 is a wasteful number, since it uses less digits than its factorization.

71443532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17860887 (or 17860885 counting only the distinct ones).

The product of its digits is 10080, while the sum is 29.

The square root of 71443532 is about 8452.4275802872. The cubic root of 71443532 is about 414.9422322456.

Adding to 71443532 its reverse (23534417), we get a palindrome (94977949).

The spelling of 71443532 in words is "seventy-one million, four hundred forty-three thousand, five hundred thirty-two".