1148656805 has 4 divisors (see below), whose sum is σ = 1378388172. Its totient is φ = 918925440.

The previous prime is 1148656763. The next prime is 1148656813. The reversal of 1148656805 is 5086568411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5086568411 = 9029 ⋅563359.

It can be written as a sum of positive squares in 2 ways, for example, as 879893569 + 268763236 = 29663^2 + 16394^2 .

It is not a de Polignac number, because 1148656805 - 2¹² = 1148652709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114865676 + ... + 114865685.

It is an arithmetic number, because the mean of its divisors is an integer number (344597043).

Almost surely, 2^1148656805 is an apocalyptic number.

It is an amenable number.

1148656805 is a deficient number, since it is larger than the sum of its proper divisors (229731367).

1148656805 is an equidigital number, since it uses as much as digits as its factorization.

1148656805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229731366.

The product of its (nonzero) digits is 230400, while the sum is 44.

The square root of 1148656805 is about 33891.8397995742. The cubic root of 1148656805 is about 1047.2814953128.

The spelling of 1148656805 in words is "one billion, one hundred forty-eight million, six hundred fifty-six thousand, eight hundred five".