418106189 has 2 divisors, whose sum is σ = 418106190. Its totient is φ = 418106188.

The previous prime is 418106123. The next prime is 418106201. The reversal of 418106189 is 981601814.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 337016164 + 81090025 = 18358^2 + 9005^2 .

It is a cyclic number.

It is not a de Polignac number, because 418106189 - 2¹² = 418102093 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (418106089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209053094 + 209053095.

It is an arithmetic number, because the mean of its divisors is an integer number (209053095).

Almost surely, 2^418106189 is an apocalyptic number.

It is an amenable number.

418106189 is a deficient number, since it is larger than the sum of its proper divisors (1).

418106189 is an equidigital number, since it uses as much as digits as its factorization.

418106189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 38.

The square root of 418106189 is about 20447.6450722326. The cubic root of 418106189 is about 747.7599467278.

The spelling of 418106189 in words is "four hundred eighteen million, one hundred six thousand, one hundred eighty-nine".