71227230 has 32 divisors (see below), whose sum is σ = 174174624. Its totient is φ = 18635136.

The previous prime is 71227217. The next prime is 71227237. The reversal of 71227230 is 3272217.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 71227230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71227237) 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 15 ways as a sum of consecutive naturals, for example, 20809 + ... + 23988.

It is an arithmetic number, because the mean of its divisors is an integer number (5442957).

Almost surely, 2^71227230 is an apocalyptic number.

71227230 is an abundant number, since it is smaller than the sum of its proper divisors (102947394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71227230 is a wasteful number, since it uses less digits than its factorization.

71227230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44860.

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 71227230 is about 8439.6226218949. The cubic root of 71227230 is about 414.5230500689.

Adding to 71227230 its reverse (3272217), we get a palindrome (74499447).

The spelling of 71227230 in words is "seventy-one million, two hundred twenty-seven thousand, two hundred thirty".