1148848389 has 24 divisors (see below), whose sum is σ = 1892224152. Its totient is φ = 665395200.

The previous prime is 1148848381. The next prime is 1148848399. The reversal of 1148848389 is 9838488411.

1148848389 is a `hidden beast` number, since 1 + 1 + 4 + 88 + 483 + 89 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 518336289 + 630512100 = 22767^2 + 25110^2 .

It is not a de Polignac number, because 1148848389 - 2³ = 1148848381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148848381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 286812 + ... + 290789.

It is an arithmetic number, because the mean of its divisors is an integer number (78842673).

Almost surely, 2^1148848389 is an apocalyptic number.

It is an amenable number.

1148848389 is a deficient number, since it is larger than the sum of its proper divisors (743375763).

1148848389 is a wasteful number, since it uses less digits than its factorization.

1148848389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577637 (or 577634 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 54.

The square root of 1148848389 is about 33894.6660847987. Note that the first 3 decimals coincide. The cubic root of 1148848389 is about 1047.3397172938.

The spelling of 1148848389 in words is "one billion, one hundred forty-eight million, eight hundred forty-eight thousand, three hundred eighty-nine".