8045521 has 8 divisors (see below), whose sum is σ = 8812800. Its totient is φ = 7284240.

The previous prime is 8045519. The next prime is 8045533. The reversal of 8045521 is 1255408.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8045521 - 2¹ = 8045519 is a prime.

It is a super-2 number, since 2×8045521² = 129460816322882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8045581) 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 7 ways as a sum of consecutive naturals, for example, 1600 + ... + 4318.

It is an arithmetic number, because the mean of its divisors is an integer number (1101600).

Almost surely, 2^8045521 is an apocalyptic number.

It is an amenable number.

8045521 is a deficient number, since it is larger than the sum of its proper divisors (767279).

8045521 is a wasteful number, since it uses less digits than its factorization.

8045521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2999.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 8045521 is about 2836.4627619625. The cubic root of 8045521 is about 200.3786244320.

The spelling of 8045521 in words is "eight million, forty-five thousand, five hundred twenty-one".