13145204 has 6 divisors (see below), whose sum is σ = 23004114. Its totient is φ = 6572600.

The previous prime is 13145203. The next prime is 13145243. The reversal of 13145204 is 40254131.

It can be written as a sum of positive squares in only one way, i.e., 13104400 + 40804 = 3620^2 + 202^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13145201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1643147 + ... + 1643154.

It is an arithmetic number, because the mean of its divisors is an integer number (3834019).

Almost surely, 2^13145204 is an apocalyptic number.

It is an amenable number.

13145204 is a deficient number, since it is larger than the sum of its proper divisors (9858910).

13145204 is a wasteful number, since it uses less digits than its factorization.

13145204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3286305 (or 3286303 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 13145204 is about 3625.6315311956. The cubic root of 13145204 is about 236.0056735206.

Adding to 13145204 its reverse (40254131), we get a palindrome (53399335).

The spelling of 13145204 in words is "thirteen million, one hundred forty-five thousand, two hundred four".