43214545 has 12 divisors (see below), whose sum is σ = 57001140. Its totient is φ = 31428320.

The previous prime is 43214543. The next prime is 43214551. The reversal of 43214545 is 54541234.

43214545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6345361 + 36869184 = 2519^2 + 6072^2 .

It is not a de Polignac number, because 43214545 - 2¹ = 43214543 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (43214543) 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 11 ways as a sum of consecutive naturals, for example, 35110 + ... + 36319.

It is an arithmetic number, because the mean of its divisors is an integer number (4750095).

Almost surely, 2^43214545 is an apocalyptic number.

It is an amenable number.

43214545 is a deficient number, since it is larger than the sum of its proper divisors (13786595).

43214545 is a wasteful number, since it uses less digits than its factorization.

43214545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71456 (or 71445 counting only the distinct ones).

The product of its digits is 9600, while the sum is 28.

The square root of 43214545 is about 6573.7770725816. Note that the first 3 decimals coincide. The cubic root of 43214545 is about 350.9215036464.

Adding to 43214545 its reverse (54541234), we get a palindrome (97755779).

The spelling of 43214545 in words is "forty-three million, two hundred fourteen thousand, five hundred forty-five".