9112560721 has 8 divisors (see below), whose sum is σ = 10464184800. Its totient is φ = 7848138240.

The previous prime is 9112560719. The next prime is 9112560761. The reversal of 9112560721 is 1270652119.

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 9112560721 - 2¹ = 9112560719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9112560761) 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, 21800176 + ... + 21800593.

It is an arithmetic number, because the mean of its divisors is an integer number (1308023100).

Almost surely, 2^9112560721 is an apocalyptic number.

It is an amenable number.

9112560721 is a deficient number, since it is larger than the sum of its proper divisors (1351624079).

9112560721 is a wasteful number, since it uses less digits than its factorization.

9112560721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43600799.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 9112560721 is about 95459.7335058086. The cubic root of 9112560721 is about 2088.7196144885.

The spelling of 9112560721 in words is "nine billion, one hundred twelve million, five hundred sixty thousand, seven hundred twenty-one".