144130021 has 12 divisors (see below), whose sum is σ = 167935680. Its totient is φ = 123338040.

The previous prime is 144130009. The next prime is 144130027. The reversal of 144130021 is 120031441.

It is a de Polignac number, because none of the positive numbers 2^k-144130021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144129977 and 144130004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144130027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33186 + ... + 37276.

It is an arithmetic number, because the mean of its divisors is an integer number (13994640).

Almost surely, 2^144130021 is an apocalyptic number.

It is an amenable number.

144130021 is a deficient number, since it is larger than the sum of its proper divisors (23805659).

144130021 is an equidigital number, since it uses as much as digits as its factorization.

144130021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4824 (or 4817 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 144130021 is about 12005.4163193119. The cubic root of 144130021 is about 524.3059866708.

Adding to 144130021 its reverse (120031441), we get a palindrome (264161462).

The spelling of 144130021 in words is "one hundred forty-four million, one hundred thirty thousand, twenty-one".