144923709 has 36 divisors (see below), whose sum is σ = 230207712. Its totient is φ = 79440480.

The previous prime is 144923707. The next prime is 144923719. The reversal of 144923709 is 907329441.

144923709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 144923709 - 2¹ = 144923707 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144923707) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2041144 + ... + 2041214.

Almost surely, 2^144923709 is an apocalyptic number.

It is an amenable number.

144923709 is a deficient number, since it is larger than the sum of its proper divisors (85284003).

144923709 is an frugal number, since it uses more digits than its factorization.

144923709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 118 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 144923709 is about 12038.4263506490. The cubic root of 144923709 is about 525.2666328157.

The spelling of 144923709 in words is "one hundred forty-four million, nine hundred twenty-three thousand, seven hundred nine".