171287268 has 48 divisors (see below), whose sum is σ = 408515520. Its totient is φ = 55843200.

The previous prime is 171287267. The next prime is 171287269. The reversal of 171287268 is 862782171.

It is an interprime number because it is at equal distance from previous prime (171287267) and next prime (171287269).

It is not an unprimeable number, because it can be changed into a prime (171287267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153898 + ... + 155006.

It is an arithmetic number, because the mean of its divisors is an integer number (8510740).

Almost surely, 2^171287268 is an apocalyptic number.

It is an amenable number.

171287268 is an abundant number, since it is smaller than the sum of its proper divisors (237228252).

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

171287268 is a wasteful number, since it uses less digits than its factorization.

171287268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388 (or 1386 counting only the distinct ones).

The product of its digits is 75264, while the sum is 42.

The square root of 171287268 is about 13087.6761879258. The cubic root of 171287268 is about 555.3605513704.

The spelling of 171287268 in words is "one hundred seventy-one million, two hundred eighty-seven thousand, two hundred sixty-eight".