144321253 has 4 divisors (see below), whose sum is σ = 144377728. Its totient is φ = 144264780.

The previous prime is 144321241. The next prime is 144321269. The reversal of 144321253 is 352123441.

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: 352123441 = 3779 ⋅93179.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144321253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144321553) 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, 24213 + ... + 29578.

It is an arithmetic number, because the mean of its divisors is an integer number (36094432).

Almost surely, 2^144321253 is an apocalyptic number.

It is an amenable number.

144321253 is a deficient number, since it is larger than the sum of its proper divisors (56475).

144321253 is an equidigital number, since it uses as much as digits as its factorization.

144321253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56474.

The product of its digits is 2880, while the sum is 25.

The square root of 144321253 is about 12013.3780844523. The cubic root of 144321253 is about 524.5377676023.

Adding to 144321253 its reverse (352123441), we get a palindrome (496444694).

The spelling of 144321253 in words is "one hundred forty-four million, three hundred twenty-one thousand, two hundred fifty-three".