144121425 has 24 divisors (see below), whose sum is σ = 272321856. Its totient is φ = 65883840.

The previous prime is 144121357. The next prime is 144121433. The reversal of 144121425 is 524121441.

It is not a de Polignac number, because 144121425 - 2⁸ = 144121169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144121395 and 144121404.

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 in 23 ways as a sum of consecutive naturals, for example, 136734 + ... + 137783.

It is an arithmetic number, because the mean of its divisors is an integer number (11346744).

Almost surely, 2^144121425 is an apocalyptic number.

144121425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

144121425 is a deficient number, since it is larger than the sum of its proper divisors (128200431).

144121425 is a wasteful number, since it uses less digits than its factorization.

144121425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274537 (or 274532 counting only the distinct ones).

The product of its digits is 1280, while the sum is 24.

The square root of 144121425 is about 12005.0583088963. The cubic root of 144121425 is about 524.2955631568.

Adding to 144121425 its reverse (524121441), we get a palindrome (668242866).

The spelling of 144121425 in words is "one hundred forty-four million, one hundred twenty-one thousand, four hundred twenty-five".