138573168 has 20 divisors (see below), whose sum is σ = 357980808. Its totient is φ = 46191040.

The previous prime is 138573161. The next prime is 138573181. The reversal of 138573168 is 861375831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138573161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1443423 + ... + 1443518.

Almost surely, 2^138573168 is an apocalyptic number.

It is an amenable number.

138573168 is an abundant number, since it is smaller than the sum of its proper divisors (219407640).

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

138573168 is a wasteful number, since it uses less digits than its factorization.

138573168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2886952 (or 2886946 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 138573168 is about 11771.7104959305. The cubic root of 138573168 is about 517.4793793272.

The spelling of 138573168 in words is "one hundred thirty-eight million, five hundred seventy-three thousand, one hundred sixty-eight".