144231313 has 4 divisors (see below), whose sum is σ = 148883968. Its totient is φ = 139578660.

The previous prime is 144231293. The next prime is 144231323. The reversal of 144231313 is 313132441.

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 144231313 - 2¹⁷ = 144100241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144231323) 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, 2326281 + ... + 2326342.

It is an arithmetic number, because the mean of its divisors is an integer number (37220992).

Almost surely, 2^144231313 is an apocalyptic number.

It is an amenable number.

144231313 is a deficient number, since it is larger than the sum of its proper divisors (4652655).

144231313 is an equidigital number, since it uses as much as digits as its factorization.

144231313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4652654.

The product of its digits is 864, while the sum is 22.

The square root of 144231313 is about 12009.6341742786. The cubic root of 144231313 is about 524.4287821980.

Adding to 144231313 its reverse (313132441), we get a palindrome (457363754).

The spelling of 144231313 in words is "one hundred forty-four million, two hundred thirty-one thousand, three hundred thirteen".