9921159 has 12 divisors (see below), whose sum is σ = 14545336. Its totient is φ = 6514992.

The previous prime is 9921137. The next prime is 9921167. The reversal of 9921159 is 9511299.

9921159 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9921159 - 2⁸ = 9920903 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 (9921169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7624 + ... + 8829.

Almost surely, 2^9921159 is an apocalyptic number.

9921159 is a deficient number, since it is larger than the sum of its proper divisors (4624177).

9921159 is a wasteful number, since it uses less digits than its factorization.

9921159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16526 (or 16523 counting only the distinct ones).

The product of its digits is 7290, while the sum is 36.

The square root of 9921159 is about 3149.7871356649. The cubic root of 9921159 is about 214.8757818603.

The spelling of 9921159 in words is "nine million, nine hundred twenty-one thousand, one hundred fifty-nine".