43145350545 has 48 divisors (see below), whose sum is σ = 75995672256. Its totient is φ = 20886729600.

The previous prime is 43145350529. The next prime is 43145350571. The reversal of 43145350545 is 54505354134.

It is a happy number.

It is not a de Polignac number, because 43145350545 - 2⁴ = 43145350529 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1181734 + ... + 1217696.

It is an arithmetic number, because the mean of its divisors is an integer number (1583243172).

Almost surely, 2^43145350545 is an apocalyptic number.

It is an amenable number.

43145350545 is a deficient number, since it is larger than the sum of its proper divisors (32850321711).

43145350545 is a wasteful number, since it uses less digits than its factorization.

43145350545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36654 (or 36643 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 39.

The spelling of 43145350545 in words is "forty-three billion, one hundred forty-five million, three hundred fifty thousand, five hundred forty-five".