144320252 has 12 divisors (see below), whose sum is σ = 260707776. Its totient is φ = 69832320.

The previous prime is 144320249. The next prime is 144320261. The reversal of 144320252 is 252023441.

It is a happy number.

144320252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581813 + ... + 582060.

It is an arithmetic number, because the mean of its divisors is an integer number (21725648).

Almost surely, 2^144320252 is an apocalyptic number.

It is an amenable number.

144320252 is a deficient number, since it is larger than the sum of its proper divisors (116387524).

144320252 is a wasteful number, since it uses less digits than its factorization.

144320252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163908 (or 1163906 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 144320252 is about 12013.3364224931. The cubic root of 144320252 is about 524.5365548830.

Adding to 144320252 its reverse (252023441), we get a palindrome (396343693).

The spelling of 144320252 in words is "one hundred forty-four million, three hundred twenty thousand, two hundred fifty-two".