13243542 has 16 divisors (see below), whose sum is σ = 28524720. Its totient is φ = 4074912.

The previous prime is 13243537. The next prime is 13243547. The reversal of 13243542 is 24534231.

It is an interprime number because it is at equal distance from previous prime (13243537) and next prime (13243547).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13243547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84817 + ... + 84972.

It is an arithmetic number, because the mean of its divisors is an integer number (1782795).

Almost surely, 2^13243542 is an apocalyptic number.

13243542 is an abundant number, since it is smaller than the sum of its proper divisors (15281178).

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

13243542 is a wasteful number, since it uses less digits than its factorization.

13243542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169807.

The product of its digits is 2880, while the sum is 24.

The square root of 13243542 is about 3639.1677620027. The cubic root of 13243542 is about 236.5927239301.

Adding to 13243542 its reverse (24534231), we get a palindrome (37777773).

The spelling of 13243542 in words is "thirteen million, two hundred forty-three thousand, five hundred forty-two".