252111343 has 16 divisors (see below), whose sum is σ = 292929696. Its totient is φ = 214435840.

The previous prime is 252111331. The next prime is 252111397. The reversal of 252111343 is 343111252.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 252111343 - 2⁵ = 252111311 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 (252111943) 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, 28455 + ... + 36247.

It is an arithmetic number, because the mean of its divisors is an integer number (18308106).

Almost surely, 2^252111343 is an apocalyptic number.

252111343 is a deficient number, since it is larger than the sum of its proper divisors (40818353).

252111343 is a wasteful number, since it uses less digits than its factorization.

252111343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7994.

The product of its digits is 720, while the sum is 22.

The square root of 252111343 is about 15878.0144539549. The cubic root of 252111343 is about 631.7289728441.

Adding to 252111343 its reverse (343111252), we get a palindrome (595222595).

Subtracting 252111343 from its reverse (343111252), we obtain a palindrome (90999909).

It can be divided in two parts, 2521 and 11343, that multiplied together give a triangular number (28595703 = T₇₅₆₂).

The spelling of 252111343 in words is "two hundred fifty-two million, one hundred eleven thousand, three hundred forty-three".