13145306 has 8 divisors (see below), whose sum is σ = 19827444. Its totient is φ = 6536160.

The previous prime is 13145299. The next prime is 13145311. The reversal of 13145306 is 60354131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9554281 + 3591025 = 3091^2 + 1895^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a zygodrome in base 5.

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, 17795 + ... + 18518.

Almost surely, 2^13145306 is an apocalyptic number.

13145306 is a deficient number, since it is larger than the sum of its proper divisors (6682138).

13145306 is a wasteful number, since it uses less digits than its factorization.

13145306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36496.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 13145306 is about 3625.6455976833. The cubic root of 13145306 is about 236.0062839464.

Adding to 13145306 its reverse (60354131), we get a palindrome (73499437).

The spelling of 13145306 in words is "thirteen million, one hundred forty-five thousand, three hundred six".