13331242 has 8 divisors (see below), whose sum is σ = 20686500. Its totient is φ = 6435744.

The previous prime is 13331239. The next prime is 13331251. The reversal of 13331242 is 24213331.

It can be written as a sum of positive squares in 2 ways, for example, as 11964681 + 1366561 = 3459^2 + 1169^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 114867 + ... + 114982.

Almost surely, 2^13331242 is an apocalyptic number.

13331242 is a deficient number, since it is larger than the sum of its proper divisors (7355258).

13331242 is a wasteful number, since it uses less digits than its factorization.

13331242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229880.

The product of its digits is 432, while the sum is 19.

The square root of 13331242 is about 3651.1973378606. The cubic root of 13331242 is about 237.1138219019.

Adding to 13331242 its reverse (24213331), we get a palindrome (37544573).

It can be divided in two parts, 133 and 31242, that added together give a triangular number (31375 = T₂₅₀).

The spelling of 13331242 in words is "thirteen million, three hundred thirty-one thousand, two hundred forty-two".