11517047 has 2 divisors, whose sum is σ = 11517048. Its totient is φ = 11517046.

The previous prime is 11517019. The next prime is 11517061. The reversal of 11517047 is 74071511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11517047 - 2¹⁰ = 11516023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11517017) 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, 5758523 + 5758524.

It is an arithmetic number, because the mean of its divisors is an integer number (5758524).

Almost surely, 2^11517047 is an apocalyptic number.

11517047 is a deficient number, since it is larger than the sum of its proper divisors (1).

11517047 is an equidigital number, since it uses as much as digits as its factorization.

11517047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 980, while the sum is 26.

The square root of 11517047 is about 3393.6775038297. The cubic root of 11517047 is about 225.8293475087.

Adding to 11517047 its reverse (74071511), we get a palindrome (85588558).

The spelling of 11517047 in words is "eleven million, five hundred seventeen thousand, forty-seven".