144047393 has 4 divisors (see below), whose sum is σ = 164625600. Its totient is φ = 123469188.

The previous prime is 144047381. The next prime is 144047399. The reversal of 144047393 is 393740441.

144047393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 144047393 - 2⁶ = 144047329 is a prime.

It is a super-4 number, since 4×144047393⁴ (a number of 34 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144047399) 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, 10289093 + ... + 10289106.

It is an arithmetic number, because the mean of its divisors is an integer number (41156400).

Almost surely, 2^144047393 is an apocalyptic number.

It is an amenable number.

144047393 is a deficient number, since it is larger than the sum of its proper divisors (20578207).

144047393 is an equidigital number, since it uses as much as digits as its factorization.

144047393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20578206.

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

The square root of 144047393 is about 12001.9745458820. The cubic root of 144047393 is about 524.2057747554.

The spelling of 144047393 in words is "one hundred forty-four million, forty-seven thousand, three hundred ninety-three".