13518122 has 4 divisors (see below), whose sum is σ = 20277186. Its totient is φ = 6759060.

The previous prime is 13518119. The next prime is 13518133. The reversal of 13518122 is 22181531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22181531 = 19 ⋅1167449.

It can be written as a sum of positive squares in only one way, i.e., 11498881 + 2019241 = 3391^2 + 1421^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3379529 + ... + 3379532.

Almost surely, 2^13518122 is an apocalyptic number.

13518122 is a deficient number, since it is larger than the sum of its proper divisors (6759064).

13518122 is an equidigital number, since it uses as much as digits as its factorization.

13518122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6759063.

The product of its digits is 480, while the sum is 23.

The square root of 13518122 is about 3676.6998789676. The cubic root of 13518122 is about 238.2166541638.

Adding to 13518122 its reverse (22181531), we get a palindrome (35699653).

The spelling of 13518122 in words is "thirteen million, five hundred eighteen thousand, one hundred twenty-two".