143623543 has 4 divisors (see below), whose sum is σ = 164141200. Its totient is φ = 123105888.

The previous prime is 143623541. The next prime is 143623547. The reversal of 143623543 is 345326341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 345326341 = 461 ⋅749081.

It is a cyclic number.

It is not a de Polignac number, because 143623543 - 2¹ = 143623541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143623541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10258818 + ... + 10258831.

It is an arithmetic number, because the mean of its divisors is an integer number (41035300).

Almost surely, 2^143623543 is an apocalyptic number.

143623543 is a deficient number, since it is larger than the sum of its proper divisors (20517657).

143623543 is an equidigital number, since it uses as much as digits as its factorization.

143623543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20517656.

The product of its digits is 25920, while the sum is 31.

The square root of 143623543 is about 11984.3040265174. The cubic root of 143623543 is about 523.6911226187.

Adding to 143623543 its reverse (345326341), we get a palindrome (488949884).

The spelling of 143623543 in words is "one hundred forty-three million, six hundred twenty-three thousand, five hundred forty-three".