11545218 has 48 divisors (see below), whose sum is σ = 26507520. Its totient is φ = 3624192.

The previous prime is 11545187. The next prime is 11545223. The reversal of 11545218 is 81254511.

It is a junction number, because it is equal to n+sod(n) for n = 11545191 and 11545200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32530 + ... + 32882.

It is an arithmetic number, because the mean of its divisors is an integer number (552240).

It is a vampire number, since it can be written as 2118 ⋅ 5451 (with its own digits).

Almost surely, 2^11545218 is an apocalyptic number.

11545218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11545218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13253760).

11545218 is an abundant number, since it is smaller than the sum of its proper divisors (14962302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11545218 is a wasteful number, since it uses less digits than its factorization.

11545218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463 (or 460 counting only the distinct ones).

The product of its digits is 1600, while the sum is 27.

The square root of 11545218 is about 3397.8254810982. The cubic root of 11545218 is about 226.0133257603.

Adding to 11545218 its reverse (81254511), we get a palindrome (92799729).

The spelling of 11545218 in words is "eleven million, five hundred forty-five thousand, two hundred eighteen".