13478189 has 4 divisors (see below), whose sum is σ = 13679424. Its totient is φ = 13276956.

The previous prime is 13478183. The next prime is 13478191. The reversal of 13478189 is 98187431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13478189 - 2⁴ = 13478173 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13478183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100517 + ... + 100650.

It is an arithmetic number, because the mean of its divisors is an integer number (3419856).

Almost surely, 2^13478189 is an apocalyptic number.

It is an amenable number.

13478189 is a deficient number, since it is larger than the sum of its proper divisors (201235).

13478189 is an equidigital number, since it uses as much as digits as its factorization.

13478189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201234.

The product of its digits is 48384, while the sum is 41.

The square root of 13478189 is about 3671.2653132129. The cubic root of 13478189 is about 237.9818560657.

The spelling of 13478189 in words is "thirteen million, four hundred seventy-eight thousand, one hundred eighty-nine".