138453 has 16 divisors (see below), whose sum is σ = 222720. Its totient is φ = 74736.

The previous prime is 138451. The next prime is 138461. The reversal of 138453 is 354831.

138453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 138453 - 2¹ = 138451 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226 + ... + 572.

It is an arithmetic number, because the mean of its divisors is an integer number (13920).

2¹³⁸⁴⁵³ is an apocalyptic number.

It is an amenable number.

138453 is a deficient number, since it is larger than the sum of its proper divisors (84267).

138453 is a wasteful number, since it uses less digits than its factorization.

138453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376.

The product of its digits is 1440, while the sum is 24.

The square root of 138453 is about 372.0927303778. The cubic root of 138453 is about 51.7329753329.

The spelling of 138453 in words is "one hundred thirty-eight thousand, four hundred fifty-three".