252320315144 has 16 divisors (see below), whose sum is σ = 473120505900. Its totient is φ = 126154846912.

The previous prime is 252320315119. The next prime is 252320315147. The reversal of 252320315144 is 441513023252.

It can be written as a sum of positive squares in 2 ways, for example, as 249310476100 + 3009839044 = 499310^2 + 54862^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 252320315144.

It is not an unprimeable number, because it can be changed into a prime (252320315147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458159 + ... + 845310.

Almost surely, 2^252320315144 is an apocalyptic number.

It is an amenable number.

252320315144 is a deficient number, since it is larger than the sum of its proper divisors (220800190756).

252320315144 is a wasteful number, since it uses less digits than its factorization.

252320315144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327672 (or 1327668 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 252320315144 its reverse (441513023252), we get a palindrome (693833338396).

The spelling of 252320315144 in words is "two hundred fifty-two billion, three hundred twenty million, three hundred fifteen thousand, one hundred forty-four".