13003542 has 36 divisors (see below), whose sum is σ = 29213340. Its totient is φ = 4180176.

The previous prime is 13003531. The next prime is 13003547. The reversal of 13003542 is 24530031.

13003542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13003547) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14709 + ... + 15567.

Almost surely, 2^13003542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13003542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14606670).

13003542 is an abundant number, since it is smaller than the sum of its proper divisors (16209798).

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

13003542 is a wasteful number, since it uses less digits than its factorization.

13003542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925 (or 893 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 13003542 is about 3606.0424290349. The cubic root of 13003542 is about 235.1548217751.

Adding to 13003542 its reverse (24530031), we get a palindrome (37533573).

The spelling of 13003542 in words is "thirteen million, three thousand, five hundred forty-two".