11752009 has 2 divisors, whose sum is σ = 11752010. Its totient is φ = 11752008.

The previous prime is 11752003. The next prime is 11752019. The reversal of 11752009 is 90025711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6125625 + 5626384 = 2475^2 + 2372^2 .

It is a cyclic number.

It is not a de Polignac number, because 11752009 - 2⁷ = 11751881 is a prime.

It is not a weakly prime, because it can be changed into another prime (11752003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5876004 + 5876005.

It is an arithmetic number, because the mean of its divisors is an integer number (5876005).

Almost surely, 2^11752009 is an apocalyptic number.

It is an amenable number.

11752009 is a deficient number, since it is larger than the sum of its proper divisors (1).

11752009 is an equidigital number, since it uses as much as digits as its factorization.

11752009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 630, while the sum is 25.

The square root of 11752009 is about 3428.1203304435. The cubic root of 11752009 is about 227.3547533205.

The spelling of 11752009 in words is "eleven million, seven hundred fifty-two thousand, nine".