144756109 has 2 divisors, whose sum is σ = 144756110. Its totient is φ = 144756108.

The previous prime is 144756077. The next prime is 144756119. The reversal of 144756109 is 901657441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143928009 + 828100 = 11997^2 + 910^2 .

It is a cyclic number.

It is not a de Polignac number, because 144756109 - 2⁵ = 144756077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144756119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72378054 + 72378055.

It is an arithmetic number, because the mean of its divisors is an integer number (72378055).

Almost surely, 2^144756109 is an apocalyptic number.

It is an amenable number.

144756109 is a deficient number, since it is larger than the sum of its proper divisors (1).

144756109 is an equidigital number, since it uses as much as digits as its factorization.

144756109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 144756109 is about 12031.4632942132. The cubic root of 144756109 is about 525.0640695807.

The spelling of 144756109 in words is "one hundred forty-four million, seven hundred fifty-six thousand, one hundred nine".