1143543623 has 2 divisors, whose sum is σ = 1143543624. Its totient is φ = 1143543622.

The previous prime is 1143543617. The next prime is 1143543673. The reversal of 1143543623 is 3263453411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1143543623 - 2⁶ = 1143543559 is a prime.

It is a super-2 number, since 2×1143543623² = 2615384035407932258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1143543623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143543673) 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, 571771811 + 571771812.

It is an arithmetic number, because the mean of its divisors is an integer number (571771812).

Almost surely, 2^1143543623 is an apocalyptic number.

1143543623 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143543623 is an equidigital number, since it uses as much as digits as its factorization.

1143543623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 32.

The square root of 1143543623 is about 33816.3218431573. The cubic root of 1143543623 is about 1045.7252119748.

The spelling of 1143543623 in words is "one billion, one hundred forty-three million, five hundred forty-three thousand, six hundred twenty-three".