9081559421 has 8 divisors (see below), whose sum is σ = 10055024544. Its totient is φ = 8132739120.

The previous prime is 9081559397. The next prime is 9081559439. The reversal of 9081559421 is 1249551809.

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

It is not a de Polignac number, because 9081559421 - 2²² = 9077365117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9081559441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6160430 + ... + 6161903.

It is an arithmetic number, because the mean of its divisors is an integer number (1256878068).

Almost surely, 2^9081559421 is an apocalyptic number.

It is an amenable number.

9081559421 is a deficient number, since it is larger than the sum of its proper divisors (973465123).

9081559421 is a wasteful number, since it uses less digits than its factorization.

9081559421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12322411.

The product of its (nonzero) digits is 129600, while the sum is 44.

The square root of 9081559421 is about 95297.2162290169. The cubic root of 9081559421 is about 2086.3482871426.

The spelling of 9081559421 in words is "nine billion, eighty-one million, five hundred fifty-nine thousand, four hundred twenty-one".