144120025 has 27 divisors (see below), whose sum is σ = 208493631. Its totient is φ = 98825160.

The previous prime is 144120019. The next prime is 144120029. The reversal of 144120025 is 520021441.

The square root of 144120025 is 12005.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 51883209 + 92236816 = 7203^2 + 9604^2 .

It is not a de Polignac number, because 144120025 - 2⁹ = 144119513 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144119984 and 144120011.

It is not an unprimeable number, because it can be changed into a prime (144120029) 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 26 ways as a sum of consecutive naturals, for example, 20588572 + ... + 20588578.

Almost surely, 2^144120025 is an apocalyptic number.

144120025 is the 12005-th square number.

144120025 is the 6003-rd centered octagonal number.

It is an amenable number.

144120025 is a deficient number, since it is larger than the sum of its proper divisors (64373606).

144120025 is an frugal number, since it uses more digits than its factorization.

144120025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66 (or 12 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The cubic root of 144120025 is about 524.2938654769.

Adding to 144120025 its reverse (520021441), we get a palindrome (664141466).

The spelling of 144120025 in words is "one hundred forty-four million, one hundred twenty thousand, twenty-five".