252105443243 has 16 divisors (see below), whose sum is σ = 262235212800. Its totient is φ = 242105099040.

The previous prime is 252105443237. The next prime is 252105443251. The reversal of 252105443243 is 342344501252.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 252105443243 - 2⁶ = 252105443179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252105443143) 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 15 ways as a sum of consecutive naturals, for example, 3292073 + ... + 3367781.

It is an arithmetic number, because the mean of its divisors is an integer number (16389700800).

Almost surely, 2^252105443243 is an apocalyptic number.

252105443243 is a deficient number, since it is larger than the sum of its proper divisors (10129769557).

252105443243 is a wasteful number, since it uses less digits than its factorization.

252105443243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76562.

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 252105443243 its reverse (342344501252), we get a palindrome (594449944495).

The spelling of 252105443243 in words is "two hundred fifty-two billion, one hundred five million, four hundred forty-three thousand, two hundred forty-three".