13140042 has 16 divisors (see below), whose sum is σ = 26434080. Its totient is φ = 4354352.

The previous prime is 13140013. The next prime is 13140047. The reversal of 13140042 is 24004131.

It is not an unprimeable number, because it can be changed into a prime (13140047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5292 + ... + 7367.

It is an arithmetic number, because the mean of its divisors is an integer number (1652130).

Almost surely, 2^13140042 is an apocalyptic number.

13140042 is an abundant number, since it is smaller than the sum of its proper divisors (13294038).

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

13140042 is a wasteful number, since it uses less digits than its factorization.

13140042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12837.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 13140042 is about 3624.9195853150. The cubic root of 13140042 is about 235.9747770611.

Adding to 13140042 its reverse (24004131), we get a palindrome (37144173).

The spelling of 13140042 in words is "thirteen million, one hundred forty thousand, forty-two".