11782189 has 2 divisors, whose sum is σ = 11782190. Its totient is φ = 11782188.

The previous prime is 11782181. The next prime is 11782213. The reversal of 11782189 is 98128711.

11782189 is digitally balanced in base 2, 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., 6165289 + 5616900 = 2483^2 + 2370^2 .

It is a cyclic number.

It is not a de Polignac number, because 11782189 - 2³ = 11782181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11782181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5891094 + 5891095.

It is an arithmetic number, because the mean of its divisors is an integer number (5891095).

Almost surely, 2^11782189 is an apocalyptic number.

It is an amenable number.

11782189 is a deficient number, since it is larger than the sum of its proper divisors (1).

11782189 is an equidigital number, since it uses as much as digits as its factorization.

11782189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 37.

The square root of 11782189 is about 3432.5193371633. The cubic root of 11782189 is about 227.5492080490.

The spelling of 11782189 in words is "eleven million, seven hundred eighty-two thousand, one hundred eighty-nine".