11985137 has 2 divisors, whose sum is σ = 11985138. Its totient is φ = 11985136.

The previous prime is 11985131. The next prime is 11985163. The reversal of 11985137 is 73158911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9265936 + 2719201 = 3044^2 + 1649^2 .

It is a cyclic number.

It is not a de Polignac number, because 11985137 - 2⁴ = 11985121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11985097 and 11985106.

It is not a weakly prime, because it can be changed into another prime (11985131) 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, 5992568 + 5992569.

It is an arithmetic number, because the mean of its divisors is an integer number (5992569).

Almost surely, 2^11985137 is an apocalyptic number.

It is an amenable number.

11985137 is a deficient number, since it is larger than the sum of its proper divisors (1).

11985137 is an equidigital number, since it uses as much as digits as its factorization.

11985137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7560, while the sum is 35.

The square root of 11985137 is about 3461.9556611834. The cubic root of 11985137 is about 228.8482878607.

The spelling of 11985137 in words is "eleven million, nine hundred eighty-five thousand, one hundred thirty-seven".