144220125 has 32 divisors (see below), whose sum is σ = 274270464. Its totient is φ = 65928000.

The previous prime is 144220123. The next prime is 144220133. The reversal of 144220125 is 521022441.

It is not a de Polignac number, because 144220125 - 2¹ = 144220123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144220123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24846 + ... + 30095.

It is an arithmetic number, because the mean of its divisors is an integer number (8570952).

Almost surely, 2^144220125 is an apocalyptic number.

144220125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

144220125 is a deficient number, since it is larger than the sum of its proper divisors (130050339).

144220125 is an equidigital number, since it uses as much as digits as its factorization.

144220125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54966 (or 54956 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 144220125 is about 12009.1683725394. The cubic root of 144220125 is about 524.4152218950.

Adding to 144220125 its reverse (521022441), we get a palindrome (665242566).

The spelling of 144220125 in words is "one hundred forty-four million, two hundred twenty thousand, one hundred twenty-five".