13145459 has 4 divisors (see below), whose sum is σ = 13158600. Its totient is φ = 13132320.

The previous prime is 13145449. The next prime is 13145479. The reversal of 13145459 is 95454131.

13145459 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13145459 - 2⁸ = 13145203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13145449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4934 + ... + 7115.

It is an arithmetic number, because the mean of its divisors is an integer number (3289650).

Almost surely, 2^13145459 is an apocalyptic number.

13145459 is a deficient number, since it is larger than the sum of its proper divisors (13141).

13145459 is a wasteful number, since it uses less digits than its factorization.

13145459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13140.

The product of its digits is 10800, while the sum is 32.

The square root of 13145459 is about 3625.6666973124. Note that the first 4 decimals coincide. The cubic root of 13145459 is about 236.0071995793.

The spelling of 13145459 in words is "thirteen million, one hundred forty-five thousand, four hundred fifty-nine".