144415028 has 6 divisors (see below), whose sum is σ = 252726306. Its totient is φ = 72207512.

The previous prime is 144415009. The next prime is 144415039. The reversal of 144415028 is 820514441.

It can be written as a sum of positive squares in only one way, i.e., 89832484 + 54582544 = 9478^2 + 7388^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 18051875 + ... + 18051882.

It is an arithmetic number, because the mean of its divisors is an integer number (42121051).

Almost surely, 2^144415028 is an apocalyptic number.

It is an amenable number.

144415028 is a deficient number, since it is larger than the sum of its proper divisors (108311278).

144415028 is a wasteful number, since it uses less digits than its factorization.

144415028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36103761 (or 36103759 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 144415028 is about 12017.2803911700. The cubic root of 144415028 is about 524.6513518881.

Adding to 144415028 its reverse (820514441), we get a palindrome (964929469).

The spelling of 144415028 in words is "one hundred forty-four million, four hundred fifteen thousand, twenty-eight".