13012542 has 32 divisors (see below), whose sum is σ = 29321760. Its totient is φ = 4276800.

The previous prime is 13012523. The next prime is 13012543. The reversal of 13012542 is 24521031.

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 (13012543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2292 + ... + 5592.

It is an arithmetic number, because the mean of its divisors is an integer number (916305).

Almost surely, 2^13012542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13012542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14660880).

13012542 is an abundant number, since it is smaller than the sum of its proper divisors (16309218).

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

13012542 is a wasteful number, since it uses less digits than its factorization.

13012542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3385 (or 3379 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 13012542 is about 3607.2901186348. The cubic root of 13012542 is about 235.2090609795.

Adding to 13012542 its reverse (24521031), we get a palindrome (37533573).

The spelling of 13012542 in words is "thirteen million, twelve thousand, five hundred forty-two".