2124149 has 2 divisors, whose sum is σ = 2124150. Its totient is φ = 2124148.

The previous prime is 2124139. The next prime is 2124173. The reversal of 2124149 is 9414212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1249924 + 874225 = 1118^2 + 935^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2124149 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2124139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062074 + 1062075.

It is an arithmetic number, because the mean of its divisors is an integer number (1062075).

2^2124149 is an apocalyptic number.

It is an amenable number.

2124149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2124149 is an equidigital number, since it uses as much as digits as its factorization.

2124149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 23.

The square root of 2124149 is about 1457.4460538902. The cubic root of 2124149 is about 128.5469151973.

The spelling of 2124149 in words is "two million, one hundred twenty-four thousand, one hundred forty-nine".