13381542 has 24 divisors (see below), whose sum is σ = 29064360. Its totient is φ = 4449600.

The previous prime is 13381523. The next prime is 13381549. The reversal of 13381542 is 24518331.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13381549) 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 11 ways as a sum of consecutive naturals, for example, 10542 + ... + 11742.

It is an arithmetic number, because the mean of its divisors is an integer number (1211015).

Almost surely, 2^13381542 is an apocalyptic number.

13381542 is an abundant number, since it is smaller than the sum of its proper divisors (15682818).

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

13381542 is a wasteful number, since it uses less digits than its factorization.

13381542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828 (or 1825 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 13381542 is about 3658.0790040676. The cubic root of 13381542 is about 237.4116650253.

Adding to 13381542 its reverse (24518331), we get a palindrome (37899873).

The spelling of 13381542 in words is "thirteen million, three hundred eighty-one thousand, five hundred forty-two".