138163084 has 12 divisors (see below), whose sum is σ = 242349408. Its totient is φ = 68920400.

The previous prime is 138163061. The next prime is 138163087. The reversal of 138163084 is 480361831.

138163084 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (138163087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38347 + ... + 41794.

It is an arithmetic number, because the mean of its divisors is an integer number (20195784).

Almost surely, 2^138163084 is an apocalyptic number.

It is an amenable number.

138163084 is a deficient number, since it is larger than the sum of its proper divisors (104186324).

138163084 is a wasteful number, since it uses less digits than its factorization.

138163084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80576 (or 80574 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 138163084 is about 11754.2793909282. The cubic root of 138163084 is about 516.9684105373.

It can be divided in two parts, 13816 and 3084, that added together give a square (16900 = 130²).

The spelling of 138163084 in words is "one hundred thirty-eight million, one hundred sixty-three thousand, eighty-four".