1448148657 has 4 divisors (see below), whose sum is σ = 1930864880. Its totient is φ = 965432436.

The previous prime is 1448148619. The next prime is 1448148697. The reversal of 1448148657 is 7568418441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7568418441 = 3 ⋅2522806147.

It is not a de Polignac number, because 1448148657 - 2⁷ = 1448148529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1448148607) 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 in 3 ways as a sum of consecutive naturals, for example, 241358107 + ... + 241358112.

It is an arithmetic number, because the mean of its divisors is an integer number (482716220).

Almost surely, 2^1448148657 is an apocalyptic number.

It is an amenable number.

1448148657 is a deficient number, since it is larger than the sum of its proper divisors (482716223).

1448148657 is an equidigital number, since it uses as much as digits as its factorization.

1448148657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482716222.

The product of its digits is 860160, while the sum is 48.

The square root of 1448148657 is about 38054.5484403639. The cubic root of 1448148657 is about 1131.3692793572.

The spelling of 1448148657 in words is "one billion, four hundred forty-eight million, one hundred forty-eight thousand, six hundred fifty-seven".