449239123 has 2 divisors, whose sum is σ = 449239124. Its totient is φ = 449239122.

The previous prime is 449239111. The next prime is 449239169. The reversal of 449239123 is 321932944.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-449239123 is a prime.

It is not a weakly prime, because it can be changed into another prime (449239423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224619561 + 224619562.

It is an arithmetic number, because the mean of its divisors is an integer number (224619562).

Almost surely, 2^449239123 is an apocalyptic number.

449239123 is a deficient number, since it is larger than the sum of its proper divisors (1).

449239123 is an equidigital number, since it uses as much as digits as its factorization.

449239123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 37.

The square root of 449239123 is about 21195.2618054130. The cubic root of 449239123 is about 765.8772870935.

The spelling of 449239123 in words is "four hundred forty-nine million, two hundred thirty-nine thousand, one hundred twenty-three".