2331091 has 16 divisors (see below), whose sum is σ = 2972160. Its totient is φ = 1779840.

The previous prime is 2331089. The next prime is 2331097. The reversal of 2331091 is 1901332.

2331091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2331091 - 2¹ = 2331089 is a prime.

It is a super-3 number, since 3×2331091³ = 38001342333188359713, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2331097) 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 15 ways as a sum of consecutive naturals, for example, 1746 + ... + 2776.

It is an arithmetic number, because the mean of its divisors is an integer number (185760).

2^2331091 is an apocalyptic number.

2331091 is a deficient number, since it is larger than the sum of its proper divisors (641069).

2331091 is a wasteful number, since it uses less digits than its factorization.

2331091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 2331091 is about 1526.7910793557. The cubic root of 2331091 is about 132.5927391572.

The spelling of 2331091 in words is "two million, three hundred thirty-one thousand, ninety-one".