13003145 has 8 divisors (see below), whose sum is σ = 15652104. Its totient is φ = 10370304.

The previous prime is 13003129. The next prime is 13003171. The reversal of 13003145 is 54130031.

It can be written as a sum of positive squares in 4 ways, for example, as 499849 + 12503296 = 707^2 + 3536^2 .

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 13003145 - 2⁴ = 13003129 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 2174 + ... + 5543.

It is an arithmetic number, because the mean of its divisors is an integer number (1956513).

Almost surely, 2^13003145 is an apocalyptic number.

It is an amenable number.

13003145 is a deficient number, since it is larger than the sum of its proper divisors (2648959).

13003145 is an equidigital number, since it uses as much as digits as its factorization.

13003145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8059.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 13003145 is about 3605.9873821188. The cubic root of 13003145 is about 235.1524286473.

Adding to 13003145 its reverse (54130031), we get a palindrome (67133176).

The spelling of 13003145 in words is "thirteen million, three thousand, one hundred forty-five".