43013066 has 4 divisors (see below), whose sum is σ = 64519602. Its totient is φ = 21506532.

The previous prime is 43013057. The next prime is 43013071. The reversal of 43013066 is 66031034.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 33582025 + 9431041 = 5795^2 + 3071^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10753265 + ... + 10753268.

Almost surely, 2^43013066 is an apocalyptic number.

43013066 is a deficient number, since it is larger than the sum of its proper divisors (21506536).

43013066 is a wasteful number, since it uses less digits than its factorization.

43013066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21506535.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 43013066 is about 6558.4347217915. The cubic root of 43013066 is about 350.3752872506.

The spelling of 43013066 in words is "forty-three million, thirteen thousand, sixty-six".