11915089 has 4 divisors (see below), whose sum is σ = 12139956. Its totient is φ = 11690224.

The previous prime is 11915077. The next prime is 11915093. The reversal of 11915089 is 98051911.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9641025 + 2274064 = 3105^2 + 1508^2 .

It is a cyclic number.

It is not a de Polignac number, because 11915089 - 2⁷ = 11914961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11915009) 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, 112354 + ... + 112459.

It is an arithmetic number, because the mean of its divisors is an integer number (3034989).

Almost surely, 2^11915089 is an apocalyptic number.

It is an amenable number.

11915089 is a deficient number, since it is larger than the sum of its proper divisors (224867).

11915089 is an equidigital number, since it uses as much as digits as its factorization.

11915089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224866.

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

The square root of 11915089 is about 3451.8240105776. The cubic root of 11915089 is about 228.4015763246.

The spelling of 11915089 in words is "eleven million, nine hundred fifteen thousand, eighty-nine".