138584 has 16 divisors (see below), whose sum is σ = 275400. Its totient is φ = 65152.

The previous prime is 138581. The next prime is 138587. The reversal of 138584 is 485831.

It is an interprime number because it is at equal distance from previous prime (138581) and next prime (138587).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374 + ... + 645.

2¹³⁸⁵⁸⁴ is an apocalyptic number.

It is an amenable number.

138584 is a deficient number, since it is larger than the sum of its proper divisors (136816).

138584 is a wasteful number, since it uses less digits than its factorization.

138584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042 (or 1038 counting only the distinct ones).

The product of its digits is 3840, while the sum is 29.

The square root of 138584 is about 372.2687201472. The cubic root of 138584 is about 51.7492862434.

The spelling of 138584 in words is "one hundred thirty-eight thousand, five hundred eighty-four".