144240181 has 2 divisors, whose sum is σ = 144240182. Its totient is φ = 144240180.

The previous prime is 144240137. The next prime is 144240203. The reversal of 144240181 is 181042441.

144240181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144240100 + 81 = 12010^2 + 9^2 .

It is a cyclic number.

It is not a de Polignac number, because 144240181 - 2¹⁹ = 143715893 is a prime.

It is a super-2 number, since 2×144240181² = 41610459629825522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144240581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72120090 + 72120091.

It is an arithmetic number, because the mean of its divisors is an integer number (72120091).

Almost surely, 2^144240181 is an apocalyptic number.

It is an amenable number.

144240181 is a deficient number, since it is larger than the sum of its proper divisors (1).

144240181 is an equidigital number, since it uses as much as digits as its factorization.

144240181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 144240181 is about 12010.0033721894. The cubic root of 144240181 is about 524.4395300701.

It can be divided in two parts, 1442401 and 81, that multiplied together give a square (116834481 = 10809²).

The spelling of 144240181 in words is "one hundred forty-four million, two hundred forty thousand, one hundred eighty-one".