71300218 has 12 divisors (see below), whose sum is σ = 117557370. Its totient is φ = 32409080.

The previous prime is 71300191. The next prime is 71300219. The reversal of 71300218 is 81200317.

It can be written as a sum of positive squares in only one way, i.e., 52229529 + 19070689 = 7227^2 + 4367^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (71300219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 147073 + ... + 147556.

Almost surely, 2^71300218 is an apocalyptic number.

71300218 is a deficient number, since it is larger than the sum of its proper divisors (46257152).

71300218 is a wasteful number, since it uses less digits than its factorization.

71300218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294653 (or 294642 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 71300218 is about 8443.9456417009. The cubic root of 71300218 is about 414.6645918167.

Subtracting 71300218 from its reverse (81200317), we obtain a palindrome (9900099).

The spelling of 71300218 in words is "seventy-one million, three hundred thousand, two hundred eighteen".