11549983 has 2 divisors, whose sum is σ = 11549984. Its totient is φ = 11549982.

The previous prime is 11549981. The next prime is 11550029. The reversal of 11549983 is 38994511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11549983 - 2¹ = 11549981 is a prime.

Together with 11549981, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11549981) 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, 5774991 + 5774992.

It is an arithmetic number, because the mean of its divisors is an integer number (5774992).

Almost surely, 2^11549983 is an apocalyptic number.

11549983 is a deficient number, since it is larger than the sum of its proper divisors (1).

11549983 is an equidigital number, since it uses as much as digits as its factorization.

11549983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 40.

The square root of 11549983 is about 3398.5265925103. The cubic root of 11549983 is about 226.0444152662.

The spelling of 11549983 in words is "eleven million, five hundred forty-nine thousand, nine hundred eighty-three".