171387552 has 192 divisors, whose sum is σ = 541465344. Its totient is φ = 46448640.

The previous prime is 171387533. The next prime is 171387553. The reversal of 171387552 is 255783171.

It is a self number, because there is not a number n which added to its sum of digits gives 171387552.

It is not an unprimeable number, because it can be changed into a prime (171387553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1516648 + ... + 1516760.

It is an arithmetic number, because the mean of its divisors is an integer number (2820132).

Almost surely, 2^171387552 is an apocalyptic number.

171387552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 171387552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270732672).

171387552 is an abundant number, since it is smaller than the sum of its proper divisors (370077792).

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

171387552 is a wasteful number, since it uses less digits than its factorization.

171387552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 223 counting only the distinct ones).

The product of its digits is 58800, while the sum is 39.

The square root of 171387552 is about 13091.5068651397. The cubic root of 171387552 is about 555.4689130186.

The spelling of 171387552 in words is "one hundred seventy-one million, three hundred eighty-seven thousand, five hundred fifty-two".