171253768 has 32 divisors (see below), whose sum is σ = 382930560. Its totient is φ = 70202880.

The previous prime is 171253727. The next prime is 171253769. The reversal of 171253768 is 867352171.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 171253768.

It is not an unprimeable number, because it can be changed into a prime (171253769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65193 + ... + 67768.

It is an arithmetic number, because the mean of its divisors is an integer number (11966580).

Almost surely, 2^171253768 is an apocalyptic number.

It is an amenable number.

171253768 is an abundant number, since it is smaller than the sum of its proper divisors (211676792).

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

171253768 is a wasteful number, since it uses less digits than its factorization.

171253768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132997 (or 132993 counting only the distinct ones).

The product of its digits is 70560, while the sum is 40.

The square root of 171253768 is about 13086.3962953901. The cubic root of 171253768 is about 555.3243435976.

The spelling of 171253768 in words is "one hundred seventy-one million, two hundred fifty-three thousand, seven hundred sixty-eight".