449148173 has 2 divisors, whose sum is σ = 449148174. Its totient is φ = 449148172.

The previous prime is 449148169. The next prime is 449148187. The reversal of 449148173 is 371841944.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 442807849 + 6340324 = 21043^2 + 2518^2 .

It is a cyclic number.

It is not a de Polignac number, because 449148173 - 2² = 449148169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 449148173.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449148103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224574086 + 224574087.

It is an arithmetic number, because the mean of its divisors is an integer number (224574087).

Almost surely, 2^449148173 is an apocalyptic number.

It is an amenable number.

449148173 is a deficient number, since it is larger than the sum of its proper divisors (1).

449148173 is an equidigital number, since it uses as much as digits as its factorization.

449148173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 41.

The square root of 449148173 is about 21193.1161701152. The cubic root of 449148173 is about 765.8255987780.

The spelling of 449148173 in words is "four hundred forty-nine million, one hundred forty-eight thousand, one hundred seventy-three".