1449872257 has 2 divisors, whose sum is σ = 1449872258. Its totient is φ = 1449872256.

The previous prime is 1449872243. The next prime is 1449872279. The reversal of 1449872257 is 7522789441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1422873841 + 26998416 = 37721^2 + 5196^2 .

It is an emirp because it is prime and its reverse (7522789441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1449872257 - 2¹¹ = 1449870209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1449872257.

It is not a weakly prime, because it can be changed into another prime (1449872057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 724936128 + 724936129.

It is an arithmetic number, because the mean of its divisors is an integer number (724936129).

Almost surely, 2^1449872257 is an apocalyptic number.

It is an amenable number.

1449872257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1449872257 is an equidigital number, since it uses as much as digits as its factorization.

1449872257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1128960, while the sum is 49.

The square root of 1449872257 is about 38077.1881446096. The cubic root of 1449872257 is about 1131.8179568104.

The spelling of 1449872257 in words is "one billion, four hundred forty-nine million, eight hundred seventy-two thousand, two hundred fifty-seven".