2119271549 has 2 divisors, whose sum is σ = 2119271550. Its totient is φ = 2119271548.

The previous prime is 2119271513. The next prime is 2119271597. The reversal of 2119271549 is 9451729112.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1704864100 + 414407449 = 41290^2 + 20357^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2119271549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2119273549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1059635774 + 1059635775.

It is an arithmetic number, because the mean of its divisors is an integer number (1059635775).

Almost surely, 2^2119271549 is an apocalyptic number.

It is an amenable number.

2119271549 is a deficient number, since it is larger than the sum of its proper divisors (1).

2119271549 is an equidigital number, since it uses as much as digits as its factorization.

2119271549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 41.

The square root of 2119271549 is about 46035.5465808760. The cubic root of 2119271549 is about 1284.4845038731.

The spelling of 2119271549 in words is "two billion, one hundred nineteen million, two hundred seventy-one thousand, five hundred forty-nine".