72234171 has 12 divisors (see below), whose sum is σ = 105161472. Its totient is φ = 47776176.

The previous prime is 72234161. The next prime is 72234221. The reversal of 72234171 is 17143227.

It is a happy number.

It is not a de Polignac number, because 72234171 - 2¹¹ = 72232123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72234131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30456 + ... + 32741.

It is an arithmetic number, because the mean of its divisors is an integer number (8763456).

Almost surely, 2^72234171 is an apocalyptic number.

72234171 is a deficient number, since it is larger than the sum of its proper divisors (32927301).

72234171 is a wasteful number, since it uses less digits than its factorization.

72234171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63330 (or 63327 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 72234171 is about 8499.0688313485. The cubic root of 72234171 is about 416.4672907111.

Adding to 72234171 its reverse (17143227), we get a palindrome (89377398).

The spelling of 72234171 in words is "seventy-two million, two hundred thirty-four thousand, one hundred seventy-one".