138954 has 8 divisors (see below), whose sum is σ = 277920. Its totient is φ = 46316.

The previous prime is 138937. The next prime is 138959. The reversal of 138954 is 459831.

138954 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

138954 is an admirable number.

It is a d-powerful number, because it can be written as 1 + 3⁵ + 9⁵ + 8³ + 5⁷ + 4⁵ .

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (138959) 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, 11574 + ... + 11585.

It is an arithmetic number, because the mean of its divisors is an integer number (34740).

2¹³⁸⁹⁵⁴ is an apocalyptic number.

138954 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

138954 is a wasteful number, since it uses less digits than its factorization.

138954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23164.

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

The square root of 138954 is about 372.7653417366. The cubic root of 138954 is about 51.7952997827.

The spelling of 138954 in words is "one hundred thirty-eight thousand, nine hundred fifty-four".