71304532 has 18 divisors (see below), whose sum is σ = 134496474. Its totient is φ = 32881680.

The previous prime is 71304523. The next prime is 71304551. The reversal of 71304532 is 23540317.

It can be written as a sum of positive squares in only one way, i.e., 49364676 + 21939856 = 7026^2 + 4684^2 .

It is a junction number, because it is equal to n+sod(n) for n = 71304497 and 71304506.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 60307 + ... + 61477.

Almost surely, 2^71304532 is an apocalyptic number.

It is an amenable number.

71304532 is a deficient number, since it is larger than the sum of its proper divisors (63191942).

71304532 is a wasteful number, since it uses less digits than its factorization.

71304532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2359 (or 1186 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 71304532 is about 8444.2010871367. The cubic root of 71304532 is about 414.6729547036.

Adding to 71304532 its reverse (23540317), we get a palindrome (94844849).

The spelling of 71304532 in words is "seventy-one million, three hundred four thousand, five hundred thirty-two".