138057626 has 16 divisors (see below), whose sum is σ = 237691584. Its totient is φ = 58912224.

The previous prime is 138057617. The next prime is 138057677. The reversal of 138057626 is 626750831.

138057626 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 138057626.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17900 + ... + 24423.

It is an arithmetic number, because the mean of its divisors is an integer number (14855724).

Almost surely, 2^138057626 is an apocalyptic number.

138057626 is a deficient number, since it is larger than the sum of its proper divisors (99633958).

138057626 is a wasteful number, since it uses less digits than its factorization.

138057626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42565.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 138057626 is about 11749.7925939142. The cubic root of 138057626 is about 516.8368454091.

The spelling of 138057626 in words is "one hundred thirty-eight million, fifty-seven thousand, six hundred twenty-six".