9445521 has 8 divisors (see below), whose sum is σ = 12644064. Its totient is φ = 6272000.

The previous prime is 9445511. The next prime is 9445529. The reversal of 9445521 is 1255449.

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

It is a 3-Lehmer number, since φ(9445521) divides (9445521-1)³.

It is a cyclic number.

It is not a de Polignac number, because 9445521 - 2⁷ = 9445393 is a prime.

It is a super-2 number, since 2×9445521² = 178435733922882, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9445529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5355 + ... + 6896.

It is an arithmetic number, because the mean of its divisors is an integer number (1580508).

Almost surely, 2^9445521 is an apocalyptic number.

It is an amenable number.

9445521 is a deficient number, since it is larger than the sum of its proper divisors (3198543).

9445521 is a wasteful number, since it uses less digits than its factorization.

9445521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12511.

The product of its digits is 7200, while the sum is 30.

The square root of 9445521 is about 3073.3566340404. The cubic root of 9445521 is about 211.3855547246.

The spelling of 9445521 in words is "nine million, four hundred forty-five thousand, five hundred twenty-one".