9221149 has 4 divisors (see below), whose sum is σ = 10538464. Its totient is φ = 7903836.

The previous prime is 9221131. The next prime is 9221161. The reversal of 9221149 is 9411229.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9221149 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 (9221189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 658647 + ... + 658660.

It is an arithmetic number, because the mean of its divisors is an integer number (2634616).

Almost surely, 2^9221149 is an apocalyptic number.

It is an amenable number.

9221149 is a deficient number, since it is larger than the sum of its proper divisors (1317315).

9221149 is a wasteful number, since it uses less digits than its factorization.

9221149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317314.

The product of its digits is 1296, while the sum is 28.

The square root of 9221149 is about 3036.6344857424. The cubic root of 9221149 is about 209.6983499775.

The spelling of 9221149 in words is "nine million, two hundred twenty-one thousand, one hundred forty-nine".