144042109 has 2 divisors, whose sum is σ = 144042110. Its totient is φ = 144042108.

The previous prime is 144042103. The next prime is 144042137. The reversal of 144042109 is 901240441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101505625 + 42536484 = 10075^2 + 6522^2 .

It is a cyclic number.

It is not a de Polignac number, because 144042109 - 2¹⁹ = 143517821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144042103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72021054 + 72021055.

It is an arithmetic number, because the mean of its divisors is an integer number (72021055).

Almost surely, 2^144042109 is an apocalyptic number.

It is an amenable number.

144042109 is a deficient number, since it is larger than the sum of its proper divisors (1).

144042109 is an equidigital number, since it uses as much as digits as its factorization.

144042109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 144042109 is about 12001.7544134181. The cubic root of 144042109 is about 524.1993649733.

The spelling of 144042109 in words is "one hundred forty-four million, forty-two thousand, one hundred nine".