11292009 has 4 divisors (see below), whose sum is σ = 15056016. Its totient is φ = 7528004.

The previous prime is 11291999. The next prime is 11292037. The reversal of 11292009 is 90029211.

11292009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 90029211 = 3 ⋅30009737.

It is a cyclic number.

It is not a de Polignac number, because 11292009 - 2⁷ = 11291881 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11292009.

It is not an unprimeable number, because it can be changed into a prime (11292059) 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, 1881999 + ... + 1882004.

It is an arithmetic number, because the mean of its divisors is an integer number (3764004).

Almost surely, 2^11292009 is an apocalyptic number.

It is an amenable number.

11292009 is a deficient number, since it is larger than the sum of its proper divisors (3764007).

11292009 is an equidigital number, since it uses as much as digits as its factorization.

11292009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3764006.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 11292009 is about 3360.3584630215. The cubic root of 11292009 is about 224.3487936070.

The spelling of 11292009 in words is "eleven million, two hundred ninety-two thousand, nine".