144531223 has 8 divisors (see below), whose sum is σ = 145670400. Its totient is φ = 143396088.

The previous prime is 144531209. The next prime is 144531239. The reversal of 144531223 is 322135441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144531223 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 (144531253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128140 + ... + 129262.

It is an arithmetic number, because the mean of its divisors is an integer number (18208800).

Almost surely, 2^144531223 is an apocalyptic number.

144531223 is a deficient number, since it is larger than the sum of its proper divisors (1139177).

144531223 is a wasteful number, since it uses less digits than its factorization.

144531223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021.

The product of its digits is 2880, while the sum is 25.

The square root of 144531223 is about 12022.1139156140. The cubic root of 144531223 is about 524.7920240471.

Adding to 144531223 its reverse (322135441), we get a palindrome (466666664).

The spelling of 144531223 in words is "one hundred forty-four million, five hundred thirty-one thousand, two hundred twenty-three".