144543623 has 4 divisors (see below), whose sum is σ = 165192720. Its totient is φ = 123894528.

The previous prime is 144543613. The next prime is 144543629. The reversal of 144543623 is 326345441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144543623 - 2¹⁰ = 144542599 is a prime.

It is a super-2 number, since 2×144543623² = 41785717899932258, 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 144543623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144543629) 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, 10324538 + ... + 10324551.

It is an arithmetic number, because the mean of its divisors is an integer number (41298180).

Almost surely, 2^144543623 is an apocalyptic number.

144543623 is a deficient number, since it is larger than the sum of its proper divisors (20649097).

144543623 is an equidigital number, since it uses as much as digits as its factorization.

144543623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20649096.

The product of its digits is 34560, while the sum is 32.

The square root of 144543623 is about 12022.6296208442. The cubic root of 144543623 is about 524.8070317270.

The spelling of 144543623 in words is "one hundred forty-four million, five hundred forty-three thousand, six hundred twenty-three".