13002538 has 16 divisors (see below), whose sum is σ = 20049120. Its totient is φ = 6322000.

The previous prime is 13002529. The next prime is 13002551. The reversal of 13002538 is 83520031.

13002538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11373 + ... + 12463.

It is an arithmetic number, because the mean of its divisors is an integer number (1253070).

Almost surely, 2^13002538 is an apocalyptic number.

13002538 is a deficient number, since it is larger than the sum of its proper divisors (7046582).

13002538 is a wasteful number, since it uses less digits than its factorization.

13002538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 13002538 is about 3605.9032155619. The cubic root of 13002538 is about 235.1487695391.

Adding to 13002538 its reverse (83520031), we get a palindrome (96522569).

The spelling of 13002538 in words is "thirteen million, two thousand, five hundred thirty-eight".