138112563 has 8 divisors (see below), whose sum is σ = 185085648. Its totient is φ = 91607264.

The previous prime is 138112553. The next prime is 138112613. The reversal of 138112563 is 365211831.

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 138112563 - 2⁸ = 138112307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 138112563.

It is not an unprimeable number, because it can be changed into a prime (138112523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116256 + ... + 117437.

It is an arithmetic number, because the mean of its divisors is an integer number (23135706).

Almost surely, 2^138112563 is an apocalyptic number.

138112563 is a deficient number, since it is larger than the sum of its proper divisors (46973085).

138112563 is a wasteful number, since it uses less digits than its factorization.

138112563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233893.

The product of its digits is 4320, while the sum is 30.

The square root of 138112563 is about 11752.1301473392. The cubic root of 138112563 is about 516.9053909414.

The spelling of 138112563 in words is "one hundred thirty-eight million, one hundred twelve thousand, five hundred sixty-three".