1148315009 has 4 divisors (see below), whose sum is σ = 1148385216. Its totient is φ = 1148244804.

The previous prime is 1148314987. The next prime is 1148315033. The reversal of 1148315009 is 9005138411.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9005138411 = 23 ⋅391527757.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1148315009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1148315309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3812 + ... + 48074.

It is an arithmetic number, because the mean of its divisors is an integer number (287096304).

Almost surely, 2^1148315009 is an apocalyptic number.

It is an amenable number.

1148315009 is a deficient number, since it is larger than the sum of its proper divisors (70207).

1148315009 is an equidigital number, since it uses as much as digits as its factorization.

1148315009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70206.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 1148315009 is about 33886.7969716821. The cubic root of 1148315009 is about 1047.1776081364.

The spelling of 1148315009 in words is "one billion, one hundred forty-eight million, three hundred fifteen thousand, nine".