144711709 has 4 divisors (see below), whose sum is σ = 145038816. Its totient is φ = 144384604.

The previous prime is 144711683. The next prime is 144711713. The reversal of 144711709 is 907117441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 144711709 - 2²¹ = 142614557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144711739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162889 + ... + 163774.

It is an arithmetic number, because the mean of its divisors is an integer number (36259704).

Almost surely, 2^144711709 is an apocalyptic number.

It is an amenable number.

144711709 is a deficient number, since it is larger than the sum of its proper divisors (327107).

144711709 is an equidigital number, since it uses as much as digits as its factorization.

144711709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327106.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 144711709 is about 12029.6179906097. The cubic root of 144711709 is about 525.0103810495.

The spelling of 144711709 in words is "one hundred forty-four million, seven hundred eleven thousand, seven hundred nine".