138144192 has 56 divisors (see below), whose sum is σ = 366473232. Its totient is φ = 45926400.

The previous prime is 138144191. The next prime is 138144217. The reversal of 138144192 is 291441831.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138144191) 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, 99342 + ... + 100722.

Almost surely, 2^138144192 is an apocalyptic number.

138144192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

138144192 is an abundant number, since it is smaller than the sum of its proper divisors (228329040).

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

138144192 is a wasteful number, since it uses less digits than its factorization.

138144192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1917 (or 1907 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 138144192 is about 11753.4757412435. The cubic root of 138144192 is about 516.9448465670.

The spelling of 138144192 in words is "one hundred thirty-eight million, one hundred forty-four thousand, one hundred ninety-two".