144845393 has 8 divisors (see below), whose sum is σ = 180586560. Its totient is φ = 112866480.

The previous prime is 144845387. The next prime is 144845479. The reversal of 144845393 is 393548441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144845393 - 2⁴ = 144845377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144845393.

It is not an unprimeable number, because it can be changed into a prime (144845353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 940478 + ... + 940631.

It is an arithmetic number, because the mean of its divisors is an integer number (22573320).

Almost surely, 2^144845393 is an apocalyptic number.

It is an amenable number.

144845393 is a deficient number, since it is larger than the sum of its proper divisors (35741167).

144845393 is a wasteful number, since it uses less digits than its factorization.

144845393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881127.

The product of its digits is 207360, while the sum is 41.

The square root of 144845393 is about 12035.1731603662. The cubic root of 144845393 is about 525.1719986707.

The spelling of 144845393 in words is "one hundred forty-four million, eight hundred forty-five thousand, three hundred ninety-three".