9161849 has 4 divisors (see below), whose sum is σ = 9168720. Its totient is φ = 9154980.

The previous prime is 9161839. The next prime is 9161869. The reversal of 9161849 is 9481619.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 9161849 - 2¹⁶ = 9096313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9161809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 719 + ... + 4340.

It is an arithmetic number, because the mean of its divisors is an integer number (2292180).

Almost surely, 2^9161849 is an apocalyptic number.

It is an amenable number.

9161849 is a deficient number, since it is larger than the sum of its proper divisors (6871).

9161849 is a wasteful number, since it uses less digits than its factorization.

9161849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6870.

The product of its digits is 15552, while the sum is 38.

The square root of 9161849 is about 3026.8546380690. The cubic root of 9161849 is about 209.2478687345.

The spelling of 9161849 in words is "nine million, one hundred sixty-one thousand, eight hundred forty-nine".