13240142 has 8 divisors (see below), whose sum is σ = 20235096. Its totient is φ = 6495112.

The previous prime is 13240141. The next prime is 13240159. The reversal of 13240142 is 24104231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13240142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13240141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62348 + ... + 62559.

It is an arithmetic number, because the mean of its divisors is an integer number (2529387).

Almost surely, 2^13240142 is an apocalyptic number.

13240142 is a deficient number, since it is larger than the sum of its proper divisors (6994954).

13240142 is a wasteful number, since it uses less digits than its factorization.

13240142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124962.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 13240142 is about 3638.7005922444. The cubic root of 13240142 is about 236.5724754671.

Adding to 13240142 its reverse (24104231), we get a palindrome (37344373).

The spelling of 13240142 in words is "thirteen million, two hundred forty thousand, one hundred forty-two".