13122442 has 16 divisors (see below), whose sum is σ = 20701800. Its totient is φ = 6229440.

The previous prime is 13122437. The next prime is 13122449. The reversal of 13122442 is 24422131.

It can be written as a sum of positive squares in 4 ways, for example, as 6305121 + 6817321 = 2511^2 + 2611^2 .

It is not an unprimeable number, because it can be changed into a prime (13122449) 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 7 ways as a sum of consecutive naturals, for example, 1684 + ... + 5392.

Almost surely, 2^13122442 is an apocalyptic number.

13122442 is a deficient number, since it is larger than the sum of its proper divisors (7579358).

13122442 is a wasteful number, since it uses less digits than its factorization.

13122442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3801.

The product of its digits is 384, while the sum is 19.

The square root of 13122442 is about 3622.4911318042. The cubic root of 13122442 is about 235.8693737520.

Adding to 13122442 its reverse (24422131), we get a palindrome (37544573).

The spelling of 13122442 in words is "thirteen million, one hundred twenty-two thousand, four hundred forty-two".