11951089 has 4 divisors (see below), whose sum is σ = 12336640. Its totient is φ = 11565540.

The previous prime is 11951083. The next prime is 11951101. The reversal of 11951089 is 98015911.

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.

It is a cyclic number.

It is not a de Polignac number, because 11951089 - 2¹⁵ = 11918321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11951083) 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, 192729 + ... + 192790.

It is an arithmetic number, because the mean of its divisors is an integer number (3084160).

Almost surely, 2^11951089 is an apocalyptic number.

It is an amenable number.

11951089 is a deficient number, since it is larger than the sum of its proper divisors (385551).

11951089 is an equidigital number, since it uses as much as digits as its factorization.

11951089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385550.

The product of its (nonzero) digits is 3240, while the sum is 34.

The square root of 11951089 is about 3457.0347120039. The cubic root of 11951089 is about 228.6313742883.

The spelling of 11951089 in words is "eleven million, nine hundred fifty-one thousand, eighty-nine".