144673361 has 4 divisors (see below), whose sum is σ = 165340992. Its totient is φ = 124005732.

The previous prime is 144673357. The next prime is 144673409. The reversal of 144673361 is 163376441.

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, and also an emirpimes, since its reverse is a distinct semiprime: 163376441 = 601 ⋅271841.

It is a cyclic number.

It is not a de Polignac number, because 144673361 - 2² = 144673357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (144676361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10333805 + ... + 10333818.

It is an arithmetic number, because the mean of its divisors is an integer number (41335248).

Almost surely, 2^144673361 is an apocalyptic number.

It is an amenable number.

144673361 is a deficient number, since it is larger than the sum of its proper divisors (20667631).

144673361 is an equidigital number, since it uses as much as digits as its factorization.

144673361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20667630.

The product of its digits is 36288, while the sum is 35.

The square root of 144673361 is about 12028.0239856761. The cubic root of 144673361 is about 524.9640017645.

The spelling of 144673361 in words is "one hundred forty-four million, six hundred seventy-three thousand, three hundred sixty-one".