1448645091 has 16 divisors (see below), whose sum is σ = 2003532960. Its totient is φ = 929940480.

The previous prime is 1448645071. The next prime is 1448645117. The reversal of 1448645091 is 1905468441.

It is not a de Polignac number, because 1448645091 - 2⁷ = 1448644963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1448645071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10131 + ... + 54771.

It is an arithmetic number, because the mean of its divisors is an integer number (125220810).

Almost surely, 2^1448645091 is an apocalyptic number.

1448645091 is a deficient number, since it is larger than the sum of its proper divisors (554887869).

1448645091 is a wasteful number, since it uses less digits than its factorization.

1448645091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45046.

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 1448645091 is about 38061.0705445866. The cubic root of 1448645091 is about 1131.4985446338.

The spelling of 1448645091 in words is "one billion, four hundred forty-eight million, six hundred forty-five thousand, ninety-one".