11205489 has 4 divisors (see below), whose sum is σ = 14940656. Its totient is φ = 7470324.

The previous prime is 11205479. The next prime is 11205503. The reversal of 11205489 is 98450211.

It is a happy number.

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: 98450211 = 3 ⋅32816737.

It is a de Polignac number, because none of the positive numbers 2^k-11205489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11205409) 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, 1867579 + ... + 1867584.

It is an arithmetic number, because the mean of its divisors is an integer number (3735164).

Almost surely, 2^11205489 is an apocalyptic number.

It is an amenable number.

11205489 is a deficient number, since it is larger than the sum of its proper divisors (3735167).

11205489 is an equidigital number, since it uses as much as digits as its factorization.

11205489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3735166.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 11205489 is about 3347.4600819129. The cubic root of 11205489 is about 223.7743329445.

The spelling of 11205489 in words is "eleven million, two hundred five thousand, four hundred eighty-nine".