43145013 has 16 divisors (see below), whose sum is σ = 59155200. Its totient is φ = 27957696.

The previous prime is 43145009. The next prime is 43145017. The reversal of 43145013 is 31054134.

43145013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (43145009) and next prime (43145017).

It is not a de Polignac number, because 43145013 - 2² = 43145009 is a prime.

It is a super-2 number, since 2×43145013² = 3722984293540338, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43145017) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 21163 + ... + 23111.

It is an arithmetic number, because the mean of its divisors is an integer number (3697200).

Almost surely, 2^43145013 is an apocalyptic number.

It is an amenable number.

43145013 is a deficient number, since it is larger than the sum of its proper divisors (16010187).

43145013 is a wasteful number, since it uses less digits than its factorization.

43145013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 43145013 is about 6568.4863553181. The cubic root of 43145013 is about 350.7331922624.

Adding to 43145013 its reverse (31054134), we get a palindrome (74199147).

The spelling of 43145013 in words is "forty-three million, one hundred forty-five thousand, thirteen".