138894 has 16 divisors (see below), whose sum is σ = 317568. Its totient is φ = 39672.

The previous prime is 138893. The next prime is 138899. The reversal of 138894 is 498831.

138894 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138893) 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, 1612 + ... + 1695.

It is an arithmetic number, because the mean of its divisors is an integer number (19848).

2¹³⁸⁸⁹⁴ is an apocalyptic number.

138894 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

138894 is an abundant number, since it is smaller than the sum of its proper divisors (178674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138894 is a wasteful number, since it uses less digits than its factorization.

138894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3319.

The product of its digits is 6912, while the sum is 33.

The square root of 138894 is about 372.6848534620. The cubic root of 138894 is about 51.7878436812.

The spelling of 138894 in words is "one hundred thirty-eight thousand, eight hundred ninety-four".