168843149 has 8 divisors (see below), whose sum is σ = 172680288. Its totient is φ = 165044880.

The previous prime is 168843119. The next prime is 168843151. The reversal of 168843149 is 941348861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 168843149 - 2⁸ = 168842893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168843109) 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, 842 + ... + 18395.

It is an arithmetic number, because the mean of its divisors is an integer number (21585036).

Almost surely, 2^168843149 is an apocalyptic number.

It is an amenable number.

168843149 is a deficient number, since it is larger than the sum of its proper divisors (3837139).

168843149 is a wasteful number, since it uses less digits than its factorization.

168843149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19435.

The product of its digits is 165888, while the sum is 44.

The square root of 168843149 is about 12993.9658688177. The cubic root of 168843149 is about 552.7063842710.

The spelling of 168843149 in words is "one hundred sixty-eight million, eight hundred forty-three thousand, one hundred forty-nine".