13505204 has 6 divisors (see below), whose sum is σ = 23634114. Its totient is φ = 6752600.

The previous prime is 13505201. The next prime is 13505207. The reversal of 13505204 is 40250531.

It is an interprime number because it is at equal distance from previous prime (13505201) and next prime (13505207).

It can be written as a sum of positive squares in only one way, i.e., 13337104 + 168100 = 3652^2 + 410^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13505201) 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 as a sum of consecutive naturals, namely, 1688147 + ... + 1688154.

It is an arithmetic number, because the mean of its divisors is an integer number (3939019).

Almost surely, 2^13505204 is an apocalyptic number.

It is an amenable number.

13505204 is a deficient number, since it is larger than the sum of its proper divisors (10128910).

13505204 is a wasteful number, since it uses less digits than its factorization.

13505204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3376305 (or 3376303 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 13505204 is about 3674.9427206421. The cubic root of 13505204 is about 238.1407495502.

Adding to 13505204 its reverse (40250531), we get a palindrome (53755735).

The spelling of 13505204 in words is "thirteen million, five hundred five thousand, two hundred four".