138557063 has 8 divisors (see below), whose sum is σ = 146353200. Its totient is φ = 130811328.

The previous prime is 138557039. The next prime is 138557071. The reversal of 138557063 is 360755831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 138557063 - 2²⁰ = 137508487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138557663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6878 + ... + 18011.

It is an arithmetic number, because the mean of its divisors is an integer number (18294150).

Almost surely, 2^138557063 is an apocalyptic number.

138557063 is a deficient number, since it is larger than the sum of its proper divisors (7796137).

138557063 is a wasteful number, since it uses less digits than its factorization.

138557063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25201.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 138557063 is about 11771.0264208352. The cubic root of 138557063 is about 517.4593313665.

The spelling of 138557063 in words is "one hundred thirty-eight million, five hundred fifty-seven thousand, sixty-three".