2215251349 has 2 divisors, whose sum is σ = 2215251350. Its totient is φ = 2215251348.

The previous prime is 2215251341. The next prime is 2215251373. The reversal of 2215251349 is 9431525122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1518660900 + 696590449 = 38970^2 + 26393^2 .

It is a cyclic number.

It is not a de Polignac number, because 2215251349 - 2³ = 2215251341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2215251341) 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, 1107625674 + 1107625675.

It is an arithmetic number, because the mean of its divisors is an integer number (1107625675).

Almost surely, 2^2215251349 is an apocalyptic number.

It is an amenable number.

2215251349 is a deficient number, since it is larger than the sum of its proper divisors (1).

2215251349 is an equidigital number, since it uses as much as digits as its factorization.

2215251349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21600, while the sum is 34.

The square root of 2215251349 is about 47066.4567287575. The cubic root of 2215251349 is about 1303.5899488317.

The spelling of 2215251349 in words is "two billion, two hundred fifteen million, two hundred fifty-one thousand, three hundred forty-nine".