2149289 has 2 divisors, whose sum is σ = 2149290. Its totient is φ = 2149288.

The previous prime is 2149283. The next prime is 2149331. The reversal of 2149289 is 9829412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2131600 + 17689 = 1460^2 + 133^2 .

It is a cyclic number.

It is not a de Polignac number, because 2149289 - 2¹² = 2145193 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2149283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074644 + 1074645.

It is an arithmetic number, because the mean of its divisors is an integer number (1074645).

2^2149289 is an apocalyptic number.

It is an amenable number.

2149289 is a deficient number, since it is larger than the sum of its proper divisors (1).

2149289 is an equidigital number, since it uses as much as digits as its factorization.

2149289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 35.

The square root of 2149289 is about 1466.0453608262. The cubic root of 2149289 is about 129.0520591917.

The spelling of 2149289 in words is "two million, one hundred forty-nine thousand, two hundred eighty-nine".