13489257 has 8 divisors (see below), whose sum is σ = 18164160. Its totient is φ = 8903600.

The previous prime is 13489213. The next prime is 13489271. The reversal of 13489257 is 75298431.

13489257 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 cyclic number.

It is not a de Polignac number, because 13489257 - 2⁶ = 13489193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13489657) 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 7 ways as a sum of consecutive naturals, for example, 21957 + ... + 22562.

It is an arithmetic number, because the mean of its divisors is an integer number (2270520).

Almost surely, 2^13489257 is an apocalyptic number.

It is an amenable number.

13489257 is a deficient number, since it is larger than the sum of its proper divisors (4674903).

13489257 is a wasteful number, since it uses less digits than its factorization.

13489257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44623.

The product of its digits is 60480, while the sum is 39.

The square root of 13489257 is about 3672.7723860866. The cubic root of 13489257 is about 238.0469801097.

The spelling of 13489257 in words is "thirteen million, four hundred eighty-nine thousand, two hundred fifty-seven".