144215530 has 8 divisors (see below), whose sum is σ = 259587972. Its totient is φ = 57686208.

The previous prime is 144215509. The next prime is 144215537. The reversal of 144215530 is 35512441.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 138697729 + 5517801 = 11777^2 + 2349^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 144215495 and 144215504.

It is not an unprimeable number, because it can be changed into a prime (144215537) 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 in 3 ways as a sum of consecutive naturals, for example, 7210767 + ... + 7210786.

Almost surely, 2^144215530 is an apocalyptic number.

144215530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144215530 is a deficient number, since it is larger than the sum of its proper divisors (115372442).

144215530 is a wasteful number, since it uses less digits than its factorization.

144215530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14421560.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 144215530 is about 12008.9770588506. The cubic root of 144215530 is about 524.4096523682.

Adding to 144215530 its reverse (35512441), we get a palindrome (179727971).

The spelling of 144215530 in words is "one hundred forty-four million, two hundred fifteen thousand, five hundred thirty".