9121099 has 12 divisors (see below), whose sum is σ = 10201152. Its totient is φ = 8143200.

The previous prime is 9121097. The next prime is 9121153. The reversal of 9121099 is 9901219.

9121099 = 7⁵ + 8⁵ + ... + 19⁵.

9121099 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 9121099 - 2¹ = 9121097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a self number, because there is not a number n which added to its sum of digits gives 9121099.

It is not an unprimeable number, because it can be changed into a prime (9121097) 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, 4369 + ... + 6109.

It is an arithmetic number, because the mean of its divisors is an integer number (850096).

Almost surely, 2^9121099 is an apocalyptic number.

9121099 is a deficient number, since it is larger than the sum of its proper divisors (1080053).

9121099 is a wasteful number, since it uses less digits than its factorization.

9121099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1798 (or 1785 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 31.

The square root of 9121099 is about 3020.1157262595. The cubic root of 9121099 is about 208.9371773057.

The spelling of 9121099 in words is "nine million, one hundred twenty-one thousand, ninety-nine".