11385569 has 8 divisors (see below), whose sum is σ = 12389160. Its totient is φ = 10400256.

The previous prime is 11385557. The next prime is 11385613. The reversal of 11385569 is 96558311.

It can be written as a sum of positive squares in 4 ways, for example, as 3045025 + 8340544 = 1745^2 + 2888^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11385569 - 2⁴ = 11385553 is a prime.

It is a super-2 number, since 2×11385569² = 259262362907522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11385509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3254 + ... + 5775.

It is an arithmetic number, because the mean of its divisors is an integer number (1548645).

Almost surely, 2^11385569 is an apocalyptic number.

It is an amenable number.

11385569 is a deficient number, since it is larger than the sum of its proper divisors (1003591).

11385569 is an equidigital number, since it uses as much as digits as its factorization.

11385569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9139.

The product of its digits is 32400, while the sum is 38.

The square root of 11385569 is about 3374.2508798250. The cubic root of 11385569 is about 224.9667045382.

The spelling of 11385569 in words is "eleven million, three hundred eighty-five thousand, five hundred sixty-nine".