13938189 has 8 divisors (see below), whose sum is σ = 19183872. Its totient is φ = 8992320.

The previous prime is 13938187. The next prime is 13938209. The reversal of 13938189 is 98183931.

It is a happy number.

13938189 is digitally balanced in base 2 and base 4, because in such bases 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 not a de Polignac number, because 13938189 - 2¹ = 13938187 is a prime.

It is a super-2 number, since 2×13938189² = 388546225199442, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13938189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13938187) 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, 74844 + ... + 75029.

It is an arithmetic number, because the mean of its divisors is an integer number (2397984).

Almost surely, 2^13938189 is an apocalyptic number.

It is an amenable number.

13938189 is a deficient number, since it is larger than the sum of its proper divisors (5245683).

13938189 is a wasteful number, since it uses less digits than its factorization.

13938189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149907.

The product of its digits is 46656, while the sum is 42.

The square root of 13938189 is about 3733.3884073319. The cubic root of 13938189 is about 240.6590047855.

The spelling of 13938189 in words is "thirteen million, nine hundred thirty-eight thousand, one hundred eighty-nine".