144445141 has 4 divisors (see below), whose sum is σ = 152941932. Its totient is φ = 135948352.

The previous prime is 144445121. The next prime is 144445153. The reversal of 144445141 is 141544441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 141544441 = 2843 ⋅49787.

It can be written as a sum of positive squares in 2 ways, for example, as 101082916 + 43362225 = 10054^2 + 6585^2 .

It is a cyclic number.

It is not a de Polignac number, because 144445141 - 2¹¹ = 144443093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144445111) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4248370 + ... + 4248403.

It is an arithmetic number, because the mean of its divisors is an integer number (38235483).

Almost surely, 2^144445141 is an apocalyptic number.

It is an amenable number.

144445141 is a deficient number, since it is larger than the sum of its proper divisors (8496791).

144445141 is an equidigital number, since it uses as much as digits as its factorization.

144445141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8496790.

The product of its digits is 5120, while the sum is 28.

The square root of 144445141 is about 12018.5332299744. The cubic root of 144445141 is about 524.6878156098.

Adding to 144445141 its reverse (141544441), we get a palindrome (285989582).

The spelling of 144445141 in words is "one hundred forty-four million, four hundred forty-five thousand, one hundred forty-one".