2321091 has 12 divisors (see below), whose sum is σ = 3498768. Its totient is φ = 1479984.

The previous prime is 2321089. The next prime is 2321101. The reversal of 2321091 is 1901232.

It is a happy number.

2321091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2321091 - 2¹ = 2321089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2321041) 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 11 ways as a sum of consecutive naturals, for example, 5400 + ... + 5813.

It is an arithmetic number, because the mean of its divisors is an integer number (291564).

2^2321091 is an apocalyptic number.

2321091 is a deficient number, since it is larger than the sum of its proper divisors (1177677).

2321091 is a wasteful number, since it uses less digits than its factorization.

2321091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11242 (or 11239 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 2321091 is about 1523.5127173739. The cubic root of 2321091 is about 132.4028669861.

The spelling of 2321091 in words is "two million, three hundred twenty-one thousand, ninety-one".