11534543 has 2 divisors, whose sum is σ = 11534544. Its totient is φ = 11534542.

The previous prime is 11534533. The next prime is 11534591. The reversal of 11534543 is 34543511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11534543 - 2⁸ = 11534287 is a prime.

It is equal to p₇₅₉₄₁₀ and since 11534543 and 759410 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11534533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5767271 + 5767272.

It is an arithmetic number, because the mean of its divisors is an integer number (5767272).

Almost surely, 2^11534543 is an apocalyptic number.

11534543 is a deficient number, since it is larger than the sum of its proper divisors (1).

11534543 is an equidigital number, since it uses as much as digits as its factorization.

11534543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 26.

The square root of 11534543 is about 3396.2542602108. The cubic root of 11534543 is about 225.9436450710.

The spelling of 11534543 in words is "eleven million, five hundred thirty-four thousand, five hundred forty-three".