2185369 has 2 divisors, whose sum is σ = 2185370. Its totient is φ = 2185368.

The previous prime is 2185363. The next prime is 2185373. The reversal of 2185369 is 9635812.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2088025 + 97344 = 1445^2 + 312^2 .

It is a cyclic number.

It is not a de Polignac number, because 2185369 - 2⁷ = 2185241 is a prime.

It is a super-2 number, since 2×2185369² = 9551675332322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2185363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1092684 + 1092685.

It is an arithmetic number, because the mean of its divisors is an integer number (1092685).

2^2185369 is an apocalyptic number.

It is an amenable number.

2185369 is a deficient number, since it is larger than the sum of its proper divisors (1).

2185369 is an equidigital number, since it uses as much as digits as its factorization.

2185369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 34.

The square root of 2185369 is about 1478.2993607521. The cubic root of 2185369 is about 129.7701856891.

The spelling of 2185369 in words is "two million, one hundred eighty-five thousand, three hundred sixty-nine".