1148009 has 4 divisors (see below), whose sum is σ = 1155216. Its totient is φ = 1140804.

The previous prime is 1147997. The next prime is 1148029. The reversal of 1148009 is 9008411.

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 an emirpimes, since its reverse is a distinct semiprime: 9008411 = 1637 ⋅5503.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1148009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1148029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3359 + ... + 3684.

It is an arithmetic number, because the mean of its divisors is an integer number (288804).

2^1148009 is an apocalyptic number.

It is an amenable number.

1148009 is a deficient number, since it is larger than the sum of its proper divisors (7207).

1148009 is an equidigital number, since it uses as much as digits as its factorization.

1148009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7206.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 1148009 is about 1071.4518187954. The cubic root of 1148009 is about 104.7084580747.

The spelling of 1148009 in words is "one million, one hundred forty-eight thousand, nine".