9921153 has 24 divisors (see below), whose sum is σ = 14717248. Its totient is φ = 5940000.

The previous prime is 9921137. The next prime is 9921167. The reversal of 9921153 is 3511299.

It is not a de Polignac number, because 9921153 - 2⁴ = 9921137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9921153.

It is not an unprimeable number, because it can be changed into a prime (9921133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54723 + ... + 54903.

Almost surely, 2^9921153 is an apocalyptic number.

It is an amenable number.

9921153 is a deficient number, since it is larger than the sum of its proper divisors (4796095).

9921153 is a wasteful number, since it uses less digits than its factorization.

9921153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 346 counting only the distinct ones).

The product of its digits is 2430, while the sum is 30.

The square root of 9921153 is about 3149.7861832194. The cubic root of 9921153 is about 214.8757385436.

It can be divided in two parts, 992 and 1153, that added together give a triangular number (2145 = T₆₅).

The spelling of 9921153 in words is "nine million, nine hundred twenty-one thousand, one hundred fifty-three".