168162871 has 4 divisors (see below), whose sum is σ = 169651152. Its totient is φ = 166674592.

The previous prime is 168162833. The next prime is 168162877. The reversal of 168162871 is 178261861.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168162871 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168162877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 743971 + ... + 744196.

It is an arithmetic number, because the mean of its divisors is an integer number (42412788).

Almost surely, 2^168162871 is an apocalyptic number.

168162871 is a deficient number, since it is larger than the sum of its proper divisors (1488281).

168162871 is a wasteful number, since it uses less digits than its factorization.

168162871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1488280.

The product of its digits is 32256, while the sum is 40.

The square root of 168162871 is about 12967.7627600138. The cubic root of 168162871 is about 551.9630906761.

The spelling of 168162871 in words is "one hundred sixty-eight million, one hundred sixty-two thousand, eight hundred seventy-one".