2149331 has 2 divisors, whose sum is σ = 2149332. Its totient is φ = 2149330.

The previous prime is 2149289. The next prime is 2149349. The reversal of 2149331 is 1339412.

2149331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2149331 - 2¹⁴ = 2132947 is a prime.

It is a super-2 number, since 2×2149331² = 9239247495122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2149297 and 2149306.

It is not a weakly prime, because it can be changed into another prime (2149351) 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 as a sum of consecutive naturals, namely, 1074665 + 1074666.

It is an arithmetic number, because the mean of its divisors is an integer number (1074666).

2^2149331 is an apocalyptic number.

2149331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2149331 is an equidigital number, since it uses as much as digits as its factorization.

2149331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 23.

The square root of 2149331 is about 1466.0596850060. The cubic root of 2149331 is about 129.0528998032.

The spelling of 2149331 in words is "two million, one hundred forty-nine thousand, three hundred thirty-one".