423324149 has 2 divisors, whose sum is σ = 423324150. Its totient is φ = 423324148.

The previous prime is 423324137. The next prime is 423324151. The reversal of 423324149 is 941423324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228916900 + 194407249 = 15130^2 + 13943^2 .

It is a cyclic number.

It is not a de Polignac number, because 423324149 - 2²⁰ = 422275573 is a prime.

Together with 423324151, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423324949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211662074 + 211662075.

It is an arithmetic number, because the mean of its divisors is an integer number (211662075).

Almost surely, 2^423324149 is an apocalyptic number.

It is an amenable number.

423324149 is a deficient number, since it is larger than the sum of its proper divisors (1).

423324149 is an equidigital number, since it uses as much as digits as its factorization.

423324149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 32.

The square root of 423324149 is about 20574.8426239425. The cubic root of 423324149 is about 750.8577735550.

It can be divided in two parts, 4233 and 24149, that added together give a palindrome (28382).

The spelling of 423324149 in words is "four hundred twenty-three million, three hundred twenty-four thousand, one hundred forty-nine".