9141891 has 16 divisors (see below), whose sum is σ = 13399680. Its totient is φ = 5497920.

The previous prime is 9141883. The next prime is 9141901. The reversal of 9141891 is 1981419.

It is not a de Polignac number, because 9141891 - 2³ = 9141883 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9141851) 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 15 ways as a sum of consecutive naturals, for example, 3591 + ... + 5583.

It is an arithmetic number, because the mean of its divisors is an integer number (837480).

Almost surely, 2^9141891 is an apocalyptic number.

9141891 is a deficient number, since it is larger than the sum of its proper divisors (4257789).

9141891 is a wasteful number, since it uses less digits than its factorization.

9141891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2146.

The product of its digits is 2592, while the sum is 33.

The square root of 9141891 is about 3023.5560189949. The cubic root of 9141891 is about 209.0958177286.

The spelling of 9141891 in words is "nine million, one hundred forty-one thousand, eight hundred ninety-one".