13258145 has 4 divisors (see below), whose sum is σ = 15909780. Its totient is φ = 10606512.

The previous prime is 13258127. The next prime is 13258151. The reversal of 13258145 is 54185231.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3845521 + 9412624 = 1961^2 + 3068^2 .

It is a cyclic number.

It is not a de Polignac number, because 13258145 - 2⁶ = 13258081 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1325810 + ... + 1325819.

It is an arithmetic number, because the mean of its divisors is an integer number (3977445).

Almost surely, 2^13258145 is an apocalyptic number.

It is an amenable number.

13258145 is a deficient number, since it is larger than the sum of its proper divisors (2651635).

13258145 is an equidigital number, since it uses as much as digits as its factorization.

13258145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2651634.

The product of its digits is 4800, while the sum is 29.

The square root of 13258145 is about 3641.1735745498. The cubic root of 13258145 is about 236.6796516934.

The spelling of 13258145 in words is "thirteen million, two hundred fifty-eight thousand, one hundred forty-five".