171223052 has 144 divisors (see below), whose sum is σ = 422301600. Its totient is φ = 59673600.

The previous prime is 171223049. The next prime is 171223057. The reversal of 171223052 is 250322171.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (171223057) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1149074 + ... + 1149222.

It is an arithmetic number, because the mean of its divisors is an integer number (2932650).

Almost surely, 2^171223052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 171223052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211150800).

171223052 is an abundant number, since it is smaller than the sum of its proper divisors (251078548).

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

171223052 is a wasteful number, since it uses less digits than its factorization.

171223052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 171223052 is about 13085.2226576394. Note that the first 3 decimals coincide. The cubic root of 171223052 is about 555.2911407030.

The spelling of 171223052 in words is "one hundred seventy-one million, two hundred twenty-three thousand, fifty-two".