138547583 has 8 divisors (see below), whose sum is σ = 139496640. Its totient is φ = 137602080.

The previous prime is 138547579. The next prime is 138547589. The reversal of 138547583 is 385745831.

It is a happy number.

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 138547583 - 2² = 138547579 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138547589) 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, 157541 + ... + 158417.

It is an arithmetic number, because the mean of its divisors is an integer number (17437080).

Almost surely, 2^138547583 is an apocalyptic number.

138547583 is a deficient number, since it is larger than the sum of its proper divisors (949057).

138547583 is an equidigital number, since it uses as much as digits as its factorization.

138547583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1777.

The product of its digits is 403200, while the sum is 44.

The square root of 138547583 is about 11770.6237302872. The cubic root of 138547583 is about 517.4475296673.

The spelling of 138547583 in words is "one hundred thirty-eight million, five hundred forty-seven thousand, five hundred eighty-three".