138359583 has 24 divisors (see below), whose sum is σ = 219452688. Its totient is φ = 86811264.

The previous prime is 138359569. The next prime is 138359593. The reversal of 138359583 is 385953831.

138359583 is a `hidden beast` number, since 1 + 38 + 35 + 9 + 583 = 666.

It is not a de Polignac number, because 138359583 - 2⁴ = 138359567 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138359503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12616 + ... + 20877.

It is an arithmetic number, because the mean of its divisors is an integer number (9143862).

Almost surely, 2^138359583 is an apocalyptic number.

138359583 is a deficient number, since it is larger than the sum of its proper divisors (81093105).

138359583 is an equidigital number, since it uses as much as digits as its factorization.

138359583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33525 (or 33513 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 138359583 is about 11762.6350364193. The cubic root of 138359583 is about 517.2133762509.

The spelling of 138359583 in words is "one hundred thirty-eight million, three hundred fifty-nine thousand, five hundred eighty-three".