4091149 has 4 divisors (see below), whose sum is σ = 4186336. Its totient is φ = 3995964.

The previous prime is 4091083. The next prime is 4091161. The reversal of 4091149 is 9411904.

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 4091149 - 2⁹ = 4090637 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 (4091249) 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, 47529 + ... + 47614.

It is an arithmetic number, because the mean of its divisors is an integer number (1046584).

Almost surely, 2^4091149 is an apocalyptic number.

It is an amenable number.

4091149 is a deficient number, since it is larger than the sum of its proper divisors (95187).

4091149 is an equidigital number, since it uses as much as digits as its factorization.

4091149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95186.

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

The square root of 4091149 is about 2022.6588936348. The cubic root of 4091149 is about 159.9368109855.

The spelling of 4091149 in words is "four million, ninety-one thousand, one hundred forty-nine".