11551849 has 2 divisors, whose sum is σ = 11551850. Its totient is φ = 11551848.

The previous prime is 11551847. The next prime is 11551861. The reversal of 11551849 is 94815511.

11551849 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11424400 + 127449 = 3380^2 + 357^2 .

It is a cyclic number.

It is not a de Polignac number, because 11551849 - 2¹ = 11551847 is a prime.

Together with 11551847, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11551843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5775924 + 5775925.

It is an arithmetic number, because the mean of its divisors is an integer number (5775925).

Almost surely, 2^11551849 is an apocalyptic number.

It is an amenable number.

11551849 is a deficient number, since it is larger than the sum of its proper divisors (1).

11551849 is an equidigital number, since it uses as much as digits as its factorization.

11551849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 34.

The square root of 11551849 is about 3398.8011121571. The cubic root of 11551849 is about 226.0565877564.

The spelling of 11551849 in words is "eleven million, five hundred fifty-one thousand, eight hundred forty-nine".