11318617 has 4 divisors (see below), whose sum is σ = 11984436. Its totient is φ = 10652800.

The previous prime is 11318609. The next prime is 11318641. The reversal of 11318617 is 71681311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71681311 = 13 ⋅5513947.

It can be written as a sum of positive squares in 2 ways, for example, as 5148361 + 6170256 = 2269^2 + 2484^2 .

It is a cyclic number.

It is not a de Polignac number, because 11318617 - 2³ = 11318609 is a prime.

It is a super-3 number, since 3×11318617³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11318677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332884 + ... + 332917.

It is an arithmetic number, because the mean of its divisors is an integer number (2996109).

Almost surely, 2^11318617 is an apocalyptic number.

11318617 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

11318617 is a deficient number, since it is larger than the sum of its proper divisors (665819).

11318617 is an equidigital number, since it uses as much as digits as its factorization.

11318617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665818.

The product of its digits is 1008, while the sum is 28.

The square root of 11318617 is about 3364.3152349327. The cubic root of 11318617 is about 224.5248706332.

Adding to 11318617 its reverse (71681311), we get a palindrome (82999928).

It can be divided in two parts, 11318 and 617, that added together give a triangular number (11935 = T₁₅₄).

The spelling of 11318617 in words is "eleven million, three hundred eighteen thousand, six hundred seventeen".