11985361 has 2 divisors, whose sum is σ = 11985362. Its totient is φ = 11985360.

The previous prime is 11985353. The next prime is 11985377. The reversal of 11985361 is 16358911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6533136 + 5452225 = 2556^2 + 2335^2 .

It is a cyclic number.

It is not a de Polignac number, because 11985361 - 2³ = 11985353 is a prime.

It is not a weakly prime, because it can be changed into another prime (11985301) 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, 5992680 + 5992681.

It is an arithmetic number, because the mean of its divisors is an integer number (5992681).

Almost surely, 2^11985361 is an apocalyptic number.

It is an amenable number.

11985361 is a deficient number, since it is larger than the sum of its proper divisors (1).

11985361 is an equidigital number, since it uses as much as digits as its factorization.

11985361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 34.

The square root of 11985361 is about 3461.9880126887. The cubic root of 11985361 is about 228.8497135626.

The spelling of 11985361 in words is "eleven million, nine hundred eighty-five thousand, three hundred sixty-one".