144130221 has 12 divisors (see below), whose sum is σ = 208428480. Its totient is φ = 95975880.

The previous prime is 144130201. The next prime is 144130241. The reversal of 144130221 is 122031441.

144130221 is a `hidden beast` number, since 1 + 441 + 3 + 0 + 221 = 666.

It is an interprime number because it is at equal distance from previous prime (144130201) and next prime (144130241).

It is not a de Polignac number, because 144130221 - 2⁶ = 144130157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144130194 and 144130203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144130201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 591 + ... + 16988.

It is an arithmetic number, because the mean of its divisors is an integer number (17369040).

Almost surely, 2^144130221 is an apocalyptic number.

It is an amenable number.

144130221 is a deficient number, since it is larger than the sum of its proper divisors (64298259).

144130221 is a wasteful number, since it uses less digits than its factorization.

144130221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18496 (or 18493 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 144130221 is about 12005.4246488827. The cubic root of 144130221 is about 524.3062291860.

Adding to 144130221 its reverse (122031441), we get a palindrome (266161662).

The spelling of 144130221 in words is "one hundred forty-four million, one hundred thirty thousand, two hundred twenty-one".