11517245 has 8 divisors (see below), whose sum is σ = 14633784. Its totient is φ = 8671744.

The previous prime is 11517241. The next prime is 11517257. The reversal of 11517245 is 54271511.

It can be written as a sum of positive squares in 4 ways, for example, as 2630884 + 8886361 = 1622^2 + 2981^2 .

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 11517245 - 2² = 11517241 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11517241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67664 + ... + 67833.

It is an arithmetic number, because the mean of its divisors is an integer number (1829223).

Almost surely, 2^11517245 is an apocalyptic number.

It is an amenable number.

11517245 is a deficient number, since it is larger than the sum of its proper divisors (3116539).

11517245 is a wasteful number, since it uses less digits than its factorization.

11517245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135519.

The product of its digits is 1400, while the sum is 26.

The square root of 11517245 is about 3393.7066755982. The cubic root of 11517245 is about 225.8306416470.

Adding to 11517245 its reverse (54271511), we get a palindrome (65788756).

The spelling of 11517245 in words is "eleven million, five hundred seventeen thousand, two hundred forty-five".