13938523 has 8 divisors (see below), whose sum is σ = 14385600. Its totient is φ = 13498368.

The previous prime is 13938511. The next prime is 13938527. The reversal of 13938523 is 32583931.

13938523 is digitally balanced in base 3, 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.

It is a 11-Lehmer number, since φ(13938523) divides (13938523-1)¹¹.

It is a cyclic number.

It is not a de Polignac number, because 13938523 - 2¹³ = 13930331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13938527) 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, 2523 + ... + 5851.

It is an arithmetic number, because the mean of its divisors is an integer number (1798200).

Almost surely, 2^13938523 is an apocalyptic number.

13938523 is a deficient number, since it is larger than the sum of its proper divisors (447077).

13938523 is an equidigital number, since it uses as much as digits as its factorization.

13938523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3461.

The product of its digits is 19440, while the sum is 34.

The square root of 13938523 is about 3733.4331385469. The cubic root of 13938523 is about 240.6609270694.

The spelling of 13938523 in words is "thirteen million, nine hundred thirty-eight thousand, five hundred twenty-three".