11315217 has 24 divisors (see below), whose sum is σ = 16582912. Its totient is φ = 6854400.

The previous prime is 11315207. The next prime is 11315231. The reversal of 11315217 is 71251311.

It is a happy number.

11315217 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11315217 - 2⁴ = 11315201 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11315193 and 11315202.

It is not an unprimeable number, because it can be changed into a prime (11315207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26667 + ... + 27087.

Almost surely, 2^11315217 is an apocalyptic number.

11315217 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

11315217 is a deficient number, since it is larger than the sum of its proper divisors (5267695).

11315217 is a wasteful number, since it uses less digits than its factorization.

11315217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489 (or 472 counting only the distinct ones).

The product of its digits is 210, while the sum is 21.

The square root of 11315217 is about 3363.8098935582. The cubic root of 11315217 is about 224.5023867022.

Adding to 11315217 its reverse (71251311), we get a palindrome (82566528).

The spelling of 11315217 in words is "eleven million, three hundred fifteen thousand, two hundred seventeen".