138143160 has 96 divisors (see below), whose sum is σ = 450450000. Its totient is φ = 36716544.

The previous prime is 138143149. The next prime is 138143183. The reversal of 138143160 is 61341831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 179256 + ... + 180024.

Almost surely, 2^138143160 is an apocalyptic number.

138143160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 138143160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225225000).

138143160 is an abundant number, since it is smaller than the sum of its proper divisors (312306840).

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

138143160 is a wasteful number, since it uses less digits than its factorization.

138143160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285 (or 1278 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 138143160 is about 11753.4318392544. The cubic root of 138143160 is about 516.9435592927.

Adding to 138143160 its reverse (61341831), we get a palindrome (199484991).

The spelling of 138143160 in words is "one hundred thirty-eight million, one hundred forty-three thousand, one hundred sixty".