11513647 has 2 divisors, whose sum is σ = 11513648. Its totient is φ = 11513646.

The previous prime is 11513629. The next prime is 11513657. The reversal of 11513647 is 74631511.

It is a strong prime.

It is an emirp because it is prime and its reverse (74631511) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11513647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11513627) 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 as a sum of consecutive naturals, namely, 5756823 + 5756824.

It is an arithmetic number, because the mean of its divisors is an integer number (5756824).

Almost surely, 2^11513647 is an apocalyptic number.

11513647 is a deficient number, since it is larger than the sum of its proper divisors (1).

11513647 is an equidigital number, since it uses as much as digits as its factorization.

11513647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 28.

The square root of 11513647 is about 3393.1765353427. The cubic root of 11513647 is about 225.8071226175.

The spelling of 11513647 in words is "eleven million, five hundred thirteen thousand, six hundred forty-seven".