1448296721 has 2 divisors, whose sum is σ = 1448296722. Its totient is φ = 1448296720.

The previous prime is 1448296711. The next prime is 1448296747. The reversal of 1448296721 is 1276928441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1117966096 + 330330625 = 33436^2 + 18175^2 .

It is a cyclic number.

It is not a de Polignac number, because 1448296721 - 2¹⁰ = 1448295697 is a prime.

It is not a weakly prime, because it can be changed into another prime (1448296711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 724148360 + 724148361.

It is an arithmetic number, because the mean of its divisors is an integer number (724148361).

Almost surely, 2^1448296721 is an apocalyptic number.

It is an amenable number.

1448296721 is a deficient number, since it is larger than the sum of its proper divisors (1).

1448296721 is an equidigital number, since it uses as much as digits as its factorization.

1448296721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 44.

The square root of 1448296721 is about 38056.4938085473. The cubic root of 1448296721 is about 1131.4078364836.

The spelling of 1448296721 in words is "one billion, four hundred forty-eight million, two hundred ninety-six thousand, seven hundred twenty-one".