2149837489 has 2 divisors, whose sum is σ = 2149837490. Its totient is φ = 2149837488.

The previous prime is 2149837477. The next prime is 2149837511. The reversal of 2149837489 is 9847389412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2116000000 + 33837489 = 46000^2 + 5817^2 .

It is a cyclic number.

It is not a de Polignac number, because 2149837489 - 2⁹ = 2149836977 is a prime.

It is not a weakly prime, because it can be changed into another prime (2149637489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074918744 + 1074918745.

It is an arithmetic number, because the mean of its divisors is an integer number (1074918745).

Almost surely, 2^2149837489 is an apocalyptic number.

It is an amenable number.

2149837489 is a deficient number, since it is larger than the sum of its proper divisors (1).

2149837489 is an equidigital number, since it uses as much as digits as its factorization.

2149837489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3483648, while the sum is 55.

The square root of 2149837489 is about 46366.3400431822. The cubic root of 2149837489 is about 1290.6303609531.

The spelling of 2149837489 in words is "two billion, one hundred forty-nine million, eight hundred thirty-seven thousand, four hundred eighty-nine".