1148322065 has 12 divisors (see below), whose sum is σ = 1514647092. Its totient is φ = 835142880.

The previous prime is 1148322041. The next prime is 1148322067. The reversal of 1148322065 is 5602238411.

It can be written as a sum of positive squares in 2 ways, for example, as 270799936 + 877522129 = 16456^2 + 29623^2 .

It is not a de Polignac number, because 1148322065 - 2²⁶ = 1081213201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1148322067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 948422 + ... + 949631.

It is an arithmetic number, because the mean of its divisors is an integer number (126220591).

Almost surely, 2^1148322065 is an apocalyptic number.

It is an amenable number.

1148322065 is a deficient number, since it is larger than the sum of its proper divisors (366325027).

1148322065 is a wasteful number, since it uses less digits than its factorization.

1148322065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1898080 (or 1898069 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1148322065 is about 33886.9010828668. The cubic root of 1148322065 is about 1047.1797529805.

The spelling of 1148322065 in words is "one billion, one hundred forty-eight million, three hundred twenty-two thousand, sixty-five".