11452009 has 4 divisors (see below), whose sum is σ = 11460420. Its totient is φ = 11443600.

The previous prime is 11451977. The next prime is 11452027. The reversal of 11452009 is 90025411.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3312400 + 8139609 = 1820^2 + 2853^2 .

It is a cyclic number.

It is not a de Polignac number, because 11452009 - 2⁵ = 11451977 is a prime.

It is a super-2 number, since 2×11452009² = 262297020272162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11452039) 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, 1642 + ... + 5059.

It is an arithmetic number, because the mean of its divisors is an integer number (2865105).

Almost surely, 2^11452009 is an apocalyptic number.

It is an amenable number.

11452009 is a deficient number, since it is larger than the sum of its proper divisors (8411).

11452009 is an equidigital number, since it uses as much as digits as its factorization.

11452009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8410.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 11452009 is about 3384.0817070514. The cubic root of 11452009 is about 225.4034506203.

The spelling of 11452009 in words is "eleven million, four hundred fifty-two thousand, nine".