1448715889 has 2 divisors, whose sum is σ = 1448715890. Its totient is φ = 1448715888.

The previous prime is 1448715859. The next prime is 1448715893. The reversal of 1448715889 is 9885178441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 732243600 + 716472289 = 27060^2 + 26767^2 .

It is a cyclic number.

It is not a de Polignac number, because 1448715889 - 2¹¹ = 1448713841 is a prime.

It is not a weakly prime, because it can be changed into another prime (1448715859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 724357944 + 724357945.

It is an arithmetic number, because the mean of its divisors is an integer number (724357945).

Almost surely, 2^1448715889 is an apocalyptic number.

It is an amenable number.

1448715889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1448715889 is an equidigital number, since it uses as much as digits as its factorization.

1448715889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2580480, while the sum is 55.

The square root of 1448715889 is about 38062.0005911408. Note that the first 3 decimals coincide. The cubic root of 1448715889 is about 1131.5169771515.

The spelling of 1448715889 in words is "one billion, four hundred forty-eight million, seven hundred fifteen thousand, eight hundred eighty-nine".