2349181649 has 2 divisors, whose sum is σ = 2349181650. Its totient is φ = 2349181648.

The previous prime is 2349181609. The next prime is 2349181651. The reversal of 2349181649 is 9461819432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1843156624 + 506025025 = 42932^2 + 22495^2 .

It is a cyclic number.

It is not a de Polignac number, because 2349181649 - 2²⁸ = 2080746193 is a prime.

Together with 2349181651, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2349181609) 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, 1174590824 + 1174590825.

It is an arithmetic number, because the mean of its divisors is an integer number (1174590825).

Almost surely, 2^2349181649 is an apocalyptic number.

It is an amenable number.

2349181649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2349181649 is an equidigital number, since it uses as much as digits as its factorization.

2349181649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 47.

The square root of 2349181649 is about 48468.3571931214. The cubic root of 2349181649 is about 1329.3485510727.

The spelling of 2349181649 in words is "two billion, three hundred forty-nine million, one hundred eighty-one thousand, six hundred forty-nine".