144730109 has 4 divisors (see below), whose sum is σ = 146356380. Its totient is φ = 143103840.

The previous prime is 144730093. The next prime is 144730139. The reversal of 144730109 is 901037441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37027225 + 107702884 = 6085^2 + 10378^2 .

It is a cyclic number.

It is not a de Polignac number, because 144730109 - 2⁴ = 144730093 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 (144730139) 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, 813002 + ... + 813179.

It is an arithmetic number, because the mean of its divisors is an integer number (36589095).

Almost surely, 2^144730109 is an apocalyptic number.

It is an amenable number.

144730109 is a deficient number, since it is larger than the sum of its proper divisors (1626271).

144730109 is an equidigital number, since it uses as much as digits as its factorization.

144730109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626270.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 144730109 is about 12030.3827453660. The cubic root of 144730109 is about 525.0326316830.

The spelling of 144730109 in words is "one hundred forty-four million, seven hundred thirty thousand, one hundred nine".