138017622 has 16 divisors (see below), whose sum is σ = 283496112. Its totient is φ = 44762400.

The previous prime is 138017617. The next prime is 138017639. The reversal of 138017622 is 226710831.

It is a self number, because there is not a number n which added to its sum of digits gives 138017622.

It is a congruent number.

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, 310629 + ... + 311072.

It is an arithmetic number, because the mean of its divisors is an integer number (17718507).

Almost surely, 2^138017622 is an apocalyptic number.

138017622 is an abundant number, since it is smaller than the sum of its proper divisors (145478490).

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

138017622 is a wasteful number, since it uses less digits than its factorization.

138017622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621743.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 138017622 is about 11748.0901426572. The cubic root of 138017622 is about 516.7869205115.

The spelling of 138017622 in words is "one hundred thirty-eight million, seventeen thousand, six hundred twenty-two".