423109 has 2 divisors, whose sum is σ = 423110. Its totient is φ = 423108.

The previous prime is 423103. The next prime is 423121. The reversal of 423109 is 901324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 245025 + 178084 = 495^2 + 422^2 .

It is a cyclic number.

It is not a de Polignac number, because 423109 - 2¹⁷ = 292037 is a prime.

423109 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211554 + 211555.

It is an arithmetic number, because the mean of its divisors is an integer number (211555).

2⁴²³¹⁰⁹ is an apocalyptic number.

It is an amenable number.

423109 is a deficient number, since it is larger than the sum of its proper divisors (1).

423109 is an equidigital number, since it uses as much as digits as its factorization.

423109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 423109 is about 650.4682928475. The cubic root of 423109 is about 75.0730547429.

The spelling of 423109 in words is "four hundred twenty-three thousand, one hundred nine".