2185523 has 2 divisors, whose sum is σ = 2185524. Its totient is φ = 2185522.

The previous prime is 2185517. The next prime is 2185541. The reversal of 2185523 is 3255812.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2185523 - 2¹⁰ = 2184499 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2185492 and 2185501.

It is not a weakly prime, because it can be changed into another prime (2185723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1092761 + 1092762.

It is an arithmetic number, because the mean of its divisors is an integer number (1092762).

2^2185523 is an apocalyptic number.

2185523 is a deficient number, since it is larger than the sum of its proper divisors (1).

2185523 is an equidigital number, since it uses as much as digits as its factorization.

2185523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2400, while the sum is 26.

The square root of 2185523 is about 1478.3514467135. The cubic root of 2185523 is about 129.7732338607.

The spelling of 2185523 in words is "two million, one hundred eighty-five thousand, five hundred twenty-three".