1448376521 has 2 divisors, whose sum is σ = 1448376522. Its totient is φ = 1448376520.

The previous prime is 1448376511. The next prime is 1448376529. The reversal of 1448376521 is 1256738441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1225770121 + 222606400 = 35011^2 + 14920^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1448376521 is a prime.

It is not a weakly prime, because it can be changed into another prime (1448376529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 724188260 + 724188261.

It is an arithmetic number, because the mean of its divisors is an integer number (724188261).

Almost surely, 2^1448376521 is an apocalyptic number.

It is an amenable number.

1448376521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1448376521 is an equidigital number, since it uses as much as digits as its factorization.

1448376521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 41.

The square root of 1448376521 is about 38057.5422354098. The cubic root of 1448376521 is about 1131.4286159932.

The spelling of 1448376521 in words is "one billion, four hundred forty-eight million, three hundred seventy-six thousand, five hundred twenty-one".