11612543 has 2 divisors, whose sum is σ = 11612544. Its totient is φ = 11612542.

The previous prime is 11612527. The next prime is 11612551. The reversal of 11612543 is 34521611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11612543 - 2⁴ = 11612527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11612563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5806271 + 5806272.

It is an arithmetic number, because the mean of its divisors is an integer number (5806272).

Almost surely, 2^11612543 is an apocalyptic number.

11612543 is a deficient number, since it is larger than the sum of its proper divisors (1).

11612543 is an equidigital number, since it uses as much as digits as its factorization.

11612543 is an evil number, because the sum of its binary digits is even.

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

The square root of 11612543 is about 3407.7181514908. The cubic root of 11612543 is about 226.4518006619.

The spelling of 11612543 in words is "eleven million, six hundred twelve thousand, five hundred forty-three".