43080521 has 4 divisors (see below), whose sum is σ = 46996944. Its totient is φ = 39164100.

The previous prime is 43080497. The next prime is 43080523. The reversal of 43080521 is 12508034.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43080521 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (43080523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1958195 + ... + 1958216.

It is an arithmetic number, because the mean of its divisors is an integer number (11749236).

Almost surely, 2^43080521 is an apocalyptic number.

It is an amenable number.

43080521 is a deficient number, since it is larger than the sum of its proper divisors (3916423).

43080521 is a wasteful number, since it uses less digits than its factorization.

43080521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3916422.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 43080521 is about 6563.5753214235. The cubic root of 43080521 is about 350.5583496161.

Adding to 43080521 its reverse (12508034), we get a palindrome (55588555).

The spelling of 43080521 in words is "forty-three million, eighty thousand, five hundred twenty-one".