9189149 has 4 divisors (see below), whose sum is σ = 9210336. Its totient is φ = 9167964.

The previous prime is 9189139. The next prime is 9189157. The reversal of 9189149 is 9419819.

9189149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 9189149 - 2⁴ = 9189133 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 (9189109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9929 + ... + 10814.

It is an arithmetic number, because the mean of its divisors is an integer number (2302584).

Almost surely, 2^9189149 is an apocalyptic number.

It is an amenable number.

9189149 is a deficient number, since it is larger than the sum of its proper divisors (21187).

9189149 is a wasteful number, since it uses less digits than its factorization.

9189149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21186.

The product of its digits is 23328, while the sum is 41.

The square root of 9189149 is about 3031.3609154965. The cubic root of 9189149 is about 209.4554979400.

The spelling of 9189149 in words is "nine million, one hundred eighty-nine thousand, one hundred forty-nine".