2159449 has 2 divisors, whose sum is σ = 2159450. Its totient is φ = 2159448.

The previous prime is 2159419. The next prime is 2159453. The reversal of 2159449 is 9449512.

2159449 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 can be written as a sum of positive squares in only one way, i.e., 2073600 + 85849 = 1440^2 + 293^2 .

It is a cyclic number.

It is not a de Polignac number, because 2159449 - 2¹¹ = 2157401 is a prime.

It is not a weakly prime, because it can be changed into another prime (2159419) 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, 1079724 + 1079725.

It is an arithmetic number, because the mean of its divisors is an integer number (1079725).

2^2159449 is an apocalyptic number.

It is an amenable number.

2159449 is a deficient number, since it is larger than the sum of its proper divisors (1).

2159449 is an equidigital number, since it uses as much as digits as its factorization.

2159449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 34.

The square root of 2159449 is about 1469.5063797071. The cubic root of 2159449 is about 129.2550888605.

The spelling of 2159449 in words is "two million, one hundred fifty-nine thousand, four hundred forty-nine".