144320253 has 16 divisors (see below), whose sum is σ = 239909376. Its totient is φ = 74971440.

The previous prime is 144320249. The next prime is 144320261. The reversal of 144320253 is 352023441.

It is not a de Polignac number, because 144320253 - 2² = 144320249 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144320243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312151 + ... + 312612.

It is an arithmetic number, because the mean of its divisors is an integer number (14994336).

Almost surely, 2^144320253 is an apocalyptic number.

It is an amenable number.

144320253 is a deficient number, since it is larger than the sum of its proper divisors (95589123).

144320253 is a wasteful number, since it uses less digits than its factorization.

144320253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624784.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 144320253 is about 12013.3364641135. The cubic root of 144320253 is about 524.5365560945.

Adding to 144320253 its reverse (352023441), we get a palindrome (496343694).

The spelling of 144320253 in words is "one hundred forty-four million, three hundred twenty thousand, two hundred fifty-three".