11275289 has 4 divisors (see below), whose sum is σ = 11639040. Its totient is φ = 10911540.

The previous prime is 11275283. The next prime is 11275291. The reversal of 11275289 is 98257211.

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: 98257211 = 13 ⋅7558247.

It is a cyclic number.

It is not a de Polignac number, because 11275289 - 2¹² = 11271193 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11275283) 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, 181829 + ... + 181890.

It is an arithmetic number, because the mean of its divisors is an integer number (2909760).

Almost surely, 2^11275289 is an apocalyptic number.

It is an amenable number.

11275289 is a deficient number, since it is larger than the sum of its proper divisors (363751).

11275289 is an equidigital number, since it uses as much as digits as its factorization.

11275289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363750.

The product of its digits is 10080, while the sum is 35.

The square root of 11275289 is about 3357.8697115880. The cubic root of 11275289 is about 224.2380083379.

The spelling of 11275289 in words is "eleven million, two hundred seventy-five thousand, two hundred eighty-nine".