144215252 has 6 divisors (see below), whose sum is σ = 252376698. Its totient is φ = 72107624.

The previous prime is 144215243. The next prime is 144215273. The reversal of 144215252 is 252512441.

It can be written as a sum of positive squares in only one way, i.e., 142181776 + 2033476 = 11924^2 + 1426^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18026903 + ... + 18026910.

It is an arithmetic number, because the mean of its divisors is an integer number (42062783).

Almost surely, 2^144215252 is an apocalyptic number.

It is an amenable number.

144215252 is a deficient number, since it is larger than the sum of its proper divisors (108161446).

144215252 is a wasteful number, since it uses less digits than its factorization.

144215252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36053817 (or 36053815 counting only the distinct ones).

The product of its digits is 3200, while the sum is 26.

The square root of 144215252 is about 12008.9654841706. The cubic root of 144215252 is about 524.4093154050.

Adding to 144215252 its reverse (252512441), we get a palindrome (396727693).

The spelling of 144215252 in words is "one hundred forty-four million, two hundred fifteen thousand, two hundred fifty-two".