144423530 has 8 divisors (see below), whose sum is σ = 259962372. Its totient is φ = 57769408.

The previous prime is 144423523. The next prime is 144423533. The reversal of 144423530 is 35324441.

It can be written as a sum of positive squares in 2 ways, for example, as 138744841 + 5678689 = 11779^2 + 2383^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 144423530.

It is not an unprimeable number, because it can be changed into a prime (144423533) 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, 7221167 + ... + 7221186.

Almost surely, 2^144423530 is an apocalyptic number.

144423530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144423530 is a deficient number, since it is larger than the sum of its proper divisors (115538842).

144423530 is a wasteful number, since it uses less digits than its factorization.

144423530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14442360.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 144423530 is about 12017.6341265658. The cubic root of 144423530 is about 524.6616474423.

Adding to 144423530 its reverse (35324441), we get a palindrome (179747971).

The spelling of 144423530 in words is "one hundred forty-four million, four hundred twenty-three thousand, five hundred thirty".