1448392657 has 2 divisors, whose sum is σ = 1448392658. Its totient is φ = 1448392656.

The previous prime is 1448392643. The next prime is 1448392661. The reversal of 1448392657 is 7562938441.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1250258881 + 198133776 = 35359^2 + 14076^2 .

It is a cyclic number.

It is not a de Polignac number, because 1448392657 - 2¹¹ = 1448390609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1448392657.

It is not a weakly prime, because it can be changed into another prime (1448392697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 724196328 + 724196329.

It is an arithmetic number, because the mean of its divisors is an integer number (724196329).

Almost surely, 2^1448392657 is an apocalyptic number.

It is an amenable number.

1448392657 is a deficient number, since it is larger than the sum of its proper divisors (1).

1448392657 is an equidigital number, since it uses as much as digits as its factorization.

1448392657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 49.

The square root of 1448392657 is about 38057.7542295916. The cubic root of 1448392657 is about 1131.4328176319.

The spelling of 1448392657 in words is "one billion, four hundred forty-eight million, three hundred ninety-two thousand, six hundred fifty-seven".