144240325 has 12 divisors (see below), whose sum is σ = 189379620. Its totient is φ = 108604160.

The previous prime is 144240311. The next prime is 144240373. The reversal of 144240325 is 523042441.

It is a happy number.

144240325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 3319684 + 140920641 = 1822^2 + 11871^2 .

It is not a de Polignac number, because 144240325 - 2⁹ = 144239813 is a prime.

It is a super-2 number, since 2×144240325² = 41610542712211250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 144240325.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 169270 + ... + 170119.

It is an arithmetic number, because the mean of its divisors is an integer number (15781635).

Almost surely, 2^144240325 is an apocalyptic number.

It is an amenable number.

144240325 is a deficient number, since it is larger than the sum of its proper divisors (45139295).

144240325 is a wasteful number, since it uses less digits than its factorization.

144240325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339416 (or 339411 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 144240325 is about 12010.0093671904. The cubic root of 144240325 is about 524.4397045922.

Adding to 144240325 its reverse (523042441), we get a palindrome (667282766).

The spelling of 144240325 in words is "one hundred forty-four million, two hundred forty thousand, three hundred twenty-five".