43105013 has 16 divisors (see below), whose sum is σ = 54432000. Its totient is φ = 33259776.

The previous prime is 43105003. The next prime is 43105021. The reversal of 43105013 is 31050134.

It is a cyclic number.

It is not a de Polignac number, because 43105013 - 2¹⁸ = 42842869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 43104982 and 43105000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43105003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5138 + ... + 10611.

It is an arithmetic number, because the mean of its divisors is an integer number (3402000).

Almost surely, 2^43105013 is an apocalyptic number.

It is an amenable number.

43105013 is a deficient number, since it is larger than the sum of its proper divisors (11326987).

43105013 is a wasteful number, since it uses less digits than its factorization.

43105013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15796.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 43105013 is about 6565.4408077447. The cubic root of 43105013 is about 350.6247698012.

Adding to 43105013 its reverse (31050134), we get a palindrome (74155147).

The spelling of 43105013 in words is "forty-three million, one hundred five thousand, thirteen".