71152330 has 8 divisors (see below), whose sum is σ = 128074212. Its totient is φ = 28460928.

The previous prime is 71152309. The next prime is 71152339. The reversal of 71152330 is 3325117.

It can be written as a sum of positive squares in 2 ways, for example, as 69572281 + 1580049 = 8341^2 + 1257^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (71152339) 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, 3557607 + ... + 3557626.

Almost surely, 2^71152330 is an apocalyptic number.

71152330 is a deficient number, since it is larger than the sum of its proper divisors (56921882).

71152330 is a wasteful number, since it uses less digits than its factorization.

71152330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7115240.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 71152330 is about 8435.1840525267. The cubic root of 71152330 is about 414.3776999188.

Adding to 71152330 its reverse (3325117), we get a palindrome (74477447).

The spelling of 71152330 in words is "seventy-one million, one hundred fifty-two thousand, three hundred thirty".