144436109 has 2 divisors, whose sum is σ = 144436110. Its totient is φ = 144436108.

The previous prime is 144436031. The next prime is 144436139. The reversal of 144436109 is 901634441.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142324900 + 2111209 = 11930^2 + 1453^2 .

It is an emirp because it is prime and its reverse (901634441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144436109 - 2¹⁶ = 144370573 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 (144436139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72218054 + 72218055.

It is an arithmetic number, because the mean of its divisors is an integer number (72218055).

Almost surely, 2^144436109 is an apocalyptic number.

It is an amenable number.

144436109 is a deficient number, since it is larger than the sum of its proper divisors (1).

144436109 is an equidigital number, since it uses as much as digits as its factorization.

144436109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 144436109 is about 12018.1574710935. The cubic root of 144436109 is about 524.6768793261.

The spelling of 144436109 in words is "one hundred forty-four million, four hundred thirty-six thousand, one hundred nine".