13004502 has 64 divisors (see below), whose sum is σ = 31104000. Its totient is φ = 3622080.

The previous prime is 13004491. The next prime is 13004513. The reversal of 13004502 is 20540031.

It is an interprime number because it is at equal distance from previous prime (13004491) and next prime (13004513).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 146074 + ... + 146162.

It is an arithmetic number, because the mean of its divisors is an integer number (486000).

Almost surely, 2^13004502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13004502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15552000).

13004502 is an abundant number, since it is smaller than the sum of its proper divisors (18099498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13004502 is an equidigital number, since it uses as much as digits as its factorization.

13004502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 13004502 is about 3606.1755364929. The cubic root of 13004502 is about 235.1606084824.

Adding to 13004502 its reverse (20540031), we get a palindrome (33544533).

The spelling of 13004502 in words is "thirteen million, four thousand, five hundred two".