11269985 has 4 divisors (see below), whose sum is σ = 13523988. Its totient is φ = 9015984.

The previous prime is 11269969. The next prime is 11269987. The reversal of 11269985 is 58996211.

It is a happy number.

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 6574096 + 4695889 = 2564^2 + 2167^2 .

It is a cyclic number.

It is not a de Polignac number, because 11269985 - 2⁴ = 11269969 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 (11269987) 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, 1126994 + ... + 1127003.

It is an arithmetic number, because the mean of its divisors is an integer number (3380997).

Almost surely, 2^11269985 is an apocalyptic number.

It is an amenable number.

11269985 is a deficient number, since it is larger than the sum of its proper divisors (2254003).

11269985 is an equidigital number, since it uses as much as digits as its factorization.

11269985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2254002.

The product of its digits is 38880, while the sum is 41.

The square root of 11269985 is about 3357.0798322352. The cubic root of 11269985 is about 224.2028416135.

It can be divided in two parts, 1126 and 9985, that added together give a palindrome (11111).

The spelling of 11269985 in words is "eleven million, two hundred sixty-nine thousand, nine hundred eighty-five".