1448891219 has 2 divisors, whose sum is σ = 1448891220. Its totient is φ = 1448891218.

The previous prime is 1448891203. The next prime is 1448891267. The reversal of 1448891219 is 9121988441.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (9121988441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1448891219 - 2⁴ = 1448891203 is a prime.

It is a super-2 number, since 2×1448891219² = 4198571528990611922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1448891519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 724445609 + 724445610.

It is an arithmetic number, because the mean of its divisors is an integer number (724445610).

Almost surely, 2^1448891219 is an apocalyptic number.

1448891219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1448891219 is an equidigital number, since it uses as much as digits as its factorization.

1448891219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 47.

The square root of 1448891219 is about 38064.3037372287. The cubic root of 1448891219 is about 1131.5626223721.

The spelling of 1448891219 in words is "one billion, four hundred forty-eight million, eight hundred ninety-one thousand, two hundred nineteen".