168144078 has 16 divisors (see below), whose sum is σ = 336954960. Its totient is φ = 55936896.

The previous prime is 168144077. The next prime is 168144089. The reversal of 168144078 is 870441861.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168144077) 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 7 ways as a sum of consecutive naturals, for example, 24475 + ... + 30582.

It is an arithmetic number, because the mean of its divisors is an integer number (21059685).

Almost surely, 2^168144078 is an apocalyptic number.

168144078 is an abundant number, since it is smaller than the sum of its proper divisors (168810882).

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

168144078 is a wasteful number, since it uses less digits than its factorization.

168144078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55571.

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 168144078 is about 12967.0381352104. The cubic root of 168144078 is about 551.9425284106.

The spelling of 168144078 in words is "one hundred sixty-eight million, one hundred forty-four thousand, seventy-eight".