144709193 has 4 divisors (see below), whose sum is σ = 147788160. Its totient is φ = 141630228.

The previous prime is 144709181. The next prime is 144709199. The reversal of 144709193 is 391907441.

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 144709193 - 2⁴ = 144709177 is a prime.

It is a super-3 number, since 3×144709193³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144709199) 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, 1539413 + ... + 1539506.

It is an arithmetic number, because the mean of its divisors is an integer number (36947040).

Almost surely, 2^144709193 is an apocalyptic number.

It is an amenable number.

144709193 is a deficient number, since it is larger than the sum of its proper divisors (3078967).

144709193 is an equidigital number, since it uses as much as digits as its factorization.

144709193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3078966.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 144709193 is about 12029.5134149308. The cubic root of 144709193 is about 525.0073383706.

The spelling of 144709193 in words is "one hundred forty-four million, seven hundred nine thousand, one hundred ninety-three".