1234543 has 2 divisors, whose sum is σ = 1234544. Its totient is φ = 1234542.

The previous prime is 1234537. The next prime is 1234547. The reversal of 1234543 is 3454321.

1234543 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1234543 - 2⁵ = 1234511 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1234547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617271 + 617272.

It is an arithmetic number, because the mean of its divisors is an integer number (617272).

2^1234543 is an apocalyptic number.

1234543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1234543 is an equidigital number, since it uses as much as digits as its factorization.

1234543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 22.

The square root of 1234543 is about 1111.0999054991. The cubic root of 1234543 is about 107.2758770283.

Adding to 1234543 its reverse (3454321), we get a palindrome (4688864).

The spelling of 1234543 in words is "one million, two hundred thirty-four thousand, five hundred forty-three".