11543047 has 2 divisors, whose sum is σ = 11543048. Its totient is φ = 11543046.

The previous prime is 11543041. The next prime is 11543057. The reversal of 11543047 is 74034511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11543047 - 2³ = 11543039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11543041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5771523 + 5771524.

It is an arithmetic number, because the mean of its divisors is an integer number (5771524).

Almost surely, 2^11543047 is an apocalyptic number.

11543047 is a deficient number, since it is larger than the sum of its proper divisors (1).

11543047 is an equidigital number, since it uses as much as digits as its factorization.

11543047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 11543047 is about 3397.5059970514. The cubic root of 11543047 is about 225.9991581142. Note that the first 3 decimals are identical.

Adding to 11543047 its reverse (74034511), we get a palindrome (85577558).

The spelling of 11543047 in words is "eleven million, five hundred forty-three thousand, forty-seven".