13105442 has 24 divisors (see below), whose sum is σ = 23029596. Its totient is φ = 5576928.

The previous prime is 13105439. The next prime is 13105481. The reversal of 13105442 is 24450131.

It can be written as a sum of positive squares in 2 ways, for example, as 13097161 + 8281 = 3619^2 + 91^2 .

It is a super-2 number, since 2×13105442² = 343505220030728, which contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 16568 + ... + 17340.

Almost surely, 2^13105442 is an apocalyptic number.

13105442 is a deficient number, since it is larger than the sum of its proper divisors (9924154).

13105442 is a wasteful number, since it uses less digits than its factorization.

13105442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962 (or 955 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 13105442 is about 3620.1439197910. The cubic root of 13105442 is about 235.7674742187.

Adding to 13105442 its reverse (24450131), we get a palindrome (37555573).

The spelling of 13105442 in words is "thirteen million, one hundred five thousand, four hundred forty-two".