2185427 has 2 divisors, whose sum is σ = 2185428. Its totient is φ = 2185426.

The previous prime is 2185409. The next prime is 2185429. The reversal of 2185427 is 7245812.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2185427 - 2⁶ = 2185363 is a prime.

Together with 2185429, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2185427.

It is not a weakly prime, because it can be changed into another prime (2185429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1092713 + 1092714.

It is an arithmetic number, because the mean of its divisors is an integer number (1092714).

2^2185427 is an apocalyptic number.

2185427 is a deficient number, since it is larger than the sum of its proper divisors (1).

2185427 is an equidigital number, since it uses as much as digits as its factorization.

2185427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4480, while the sum is 29.

The square root of 2185427 is about 1478.3189777582. The cubic root of 2185427 is about 129.7713337186.

The spelling of 2185427 in words is "two million, one hundred eighty-five thousand, four hundred twenty-seven".