138032612 has 12 divisors (see below), whose sum is σ = 241639356. Its totient is φ = 68992800.

The previous prime is 138032603. The next prime is 138032633. The reversal of 138032612 is 216230831.

138032612 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 60310756 + 77721856 = 7766^2 + 8816^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 19778 + ... + 25830.

It is an arithmetic number, because the mean of its divisors is an integer number (20136613).

Almost surely, 2^138032612 is an apocalyptic number.

It is an amenable number.

138032612 is a deficient number, since it is larger than the sum of its proper divisors (103606744).

138032612 is a wasteful number, since it uses less digits than its factorization.

138032612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11758 (or 11756 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 138032612 is about 11748.7281013734. The cubic root of 138032612 is about 516.8056291262.

The spelling of 138032612 in words is "one hundred thirty-eight million, thirty-two thousand, six hundred twelve".