11615243 has 2 divisors, whose sum is σ = 11615244. Its totient is φ = 11615242.

The previous prime is 11615239. The next prime is 11615273. The reversal of 11615243 is 34251611.

It is a weak prime.

It is an emirp because it is prime and its reverse (34251611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11615243 - 2² = 11615239 is a prime.

It is not a weakly prime, because it can be changed into another prime (11615273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5807621 + 5807622.

It is an arithmetic number, because the mean of its divisors is an integer number (5807622).

Almost surely, 2^11615243 is an apocalyptic number.

11615243 is a deficient number, since it is larger than the sum of its proper divisors (1).

11615243 is an equidigital number, since it uses as much as digits as its factorization.

11615243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 23.

The square root of 11615243 is about 3408.1142879898. The cubic root of 11615243 is about 226.4693498608.

Adding to 11615243 its reverse (34251611), we get a palindrome (45866854).

The spelling of 11615243 in words is "eleven million, six hundred fifteen thousand, two hundred forty-three".