144220133 has 2 divisors, whose sum is σ = 144220134. Its totient is φ = 144220132.

The previous prime is 144220123. The next prime is 144220157. The reversal of 144220133 is 331022441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119290084 + 24930049 = 10922^2 + 4993^2 .

It is a cyclic number.

It is not a de Polignac number, because 144220133 - 2²² = 140025829 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144220123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72110066 + 72110067.

It is an arithmetic number, because the mean of its divisors is an integer number (72110067).

Almost surely, 2^144220133 is an apocalyptic number.

It is an amenable number.

144220133 is a deficient number, since it is larger than the sum of its proper divisors (1).

144220133 is an equidigital number, since it uses as much as digits as its factorization.

144220133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 144220133 is about 12009.1687056182. The cubic root of 144220133 is about 524.4152315916.

Adding to 144220133 its reverse (331022441), we get a palindrome (475242574).

The spelling of 144220133 in words is "one hundred forty-four million, two hundred twenty thousand, one hundred thirty-three".