13002145 has 8 divisors (see below), whose sum is σ = 16802856. Its totient is φ = 9601536.

The previous prime is 13002139. The next prime is 13002149. The reversal of 13002145 is 54120031.

It can be written as a sum of positive squares in 4 ways, for example, as 898704 + 12103441 = 948^2 + 3479^2 .

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 13002145 - 2¹⁷ = 12871073 is a prime.

It is a Duffinian number.

13002145 is a modest number, since divided by 2145 gives 1300 as remainder.

It is not an unprimeable number, because it can be changed into a prime (13002149) by changing a digit.

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, 99952 + ... + 100081.

It is an arithmetic number, because the mean of its divisors is an integer number (2100357).

Almost surely, 2^13002145 is an apocalyptic number.

It is an amenable number.

13002145 is a deficient number, since it is larger than the sum of its proper divisors (3800711).

13002145 is a wasteful number, since it uses less digits than its factorization.

13002145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200051.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 13002145 is about 3605.8487211751. The cubic root of 13002145 is about 235.1464004016.

Adding to 13002145 its reverse (54120031), we get a palindrome (67122176).

The spelling of 13002145 in words is "thirteen million, two thousand, one hundred forty-five".