13105143 has 6 divisors (see below), whose sum is σ = 18929664. Its totient is φ = 8736756.

The previous prime is 13105123. The next prime is 13105159. The reversal of 13105143 is 34150131.

It is not a de Polignac number, because 13105143 - 2⁹ = 13104631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13105123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 728055 + ... + 728072.

It is an arithmetic number, because the mean of its divisors is an integer number (3154944).

Almost surely, 2^13105143 is an apocalyptic number.

13105143 is a deficient number, since it is larger than the sum of its proper divisors (5824521).

13105143 is a wasteful number, since it uses less digits than its factorization.

13105143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456133 (or 1456130 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 13105143 is about 3620.1026228548. The cubic root of 13105143 is about 235.7656811974.

Adding to 13105143 its reverse (34150131), we get a palindrome (47255274).

The spelling of 13105143 in words is "thirteen million, one hundred five thousand, one hundred forty-three".