168123879 has 24 divisors (see below), whose sum is σ = 302769792. Its totient is φ = 87336720.

The previous prime is 168123877. The next prime is 168123883. The reversal of 168123879 is 978321861.

It is not a de Polignac number, because 168123879 - 2¹ = 168123877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168123871) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120609 + ... + 121994.

It is an arithmetic number, because the mean of its divisors is an integer number (12615408).

Almost surely, 2^168123879 is an apocalyptic number.

168123879 is a deficient number, since it is larger than the sum of its proper divisors (134645913).

168123879 is a wasteful number, since it uses less digits than its factorization.

168123879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242627 (or 242624 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 168123879 is about 12966.2592523827. The cubic root of 168123879 is about 551.9204260689.

The spelling of 168123879 in words is "one hundred sixty-eight million, one hundred twenty-three thousand, eight hundred seventy-nine".