252666143 has 8 divisors (see below), whose sum is σ = 258291600. Its totient is φ = 247085568.

The previous prime is 252666133. The next prime is 252666181. The reversal of 252666143 is 341666252.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252666143 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 (252666133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293 + ... + 22481.

It is an arithmetic number, because the mean of its divisors is an integer number (32286450).

Almost surely, 2^252666143 is an apocalyptic number.

252666143 is a deficient number, since it is larger than the sum of its proper divisors (5625457).

252666143 is a wasteful number, since it uses less digits than its factorization.

252666143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22441.

The product of its digits is 51840, while the sum is 35.

The square root of 252666143 is about 15895.4755512378. The cubic root of 252666143 is about 632.1920307546.

The spelling of 252666143 in words is "two hundred fifty-two million, six hundred sixty-six thousand, one hundred forty-three".