144735109 has 2 divisors, whose sum is σ = 144735110. Its totient is φ = 144735108.

The previous prime is 144735079. The next prime is 144735131. The reversal of 144735109 is 901537441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133864900 + 10870209 = 11570^2 + 3297^2 .

It is a cyclic number.

It is not a de Polignac number, because 144735109 - 2⁵ = 144735077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144735509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72367554 + 72367555.

It is an arithmetic number, because the mean of its divisors is an integer number (72367555).

Almost surely, 2^144735109 is an apocalyptic number.

It is an amenable number.

144735109 is a deficient number, since it is larger than the sum of its proper divisors (1).

144735109 is an equidigital number, since it uses as much as digits as its factorization.

144735109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 144735109 is about 12030.5905507585. The cubic root of 144735109 is about 525.0386777249.

The spelling of 144735109 in words is "one hundred forty-four million, seven hundred thirty-five thousand, one hundred nine".