138022517 has 16 divisors (see below), whose sum is σ = 152824320. Its totient is φ = 124066800.

The previous prime is 138022501. The next prime is 138022537. The reversal of 138022517 is 715220831.

It is a cyclic number.

It is not a de Polignac number, because 138022517 - 2⁴ = 138022501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 138022517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138022537) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 56042 + ... + 58452.

It is an arithmetic number, because the mean of its divisors is an integer number (9551520).

Almost surely, 2^138022517 is an apocalyptic number.

It is an amenable number.

138022517 is a deficient number, since it is larger than the sum of its proper divisors (14801803).

138022517 is a wasteful number, since it uses less digits than its factorization.

138022517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2584.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 138022517 is about 11748.2984725449. The cubic root of 138022517 is about 516.7930299779.

The spelling of 138022517 in words is "one hundred thirty-eight million, twenty-two thousand, five hundred seventeen".