212052143 has 4 divisors (see below), whose sum is σ = 217783320. Its totient is φ = 206320968.

The previous prime is 212052133. The next prime is 212052161. The reversal of 212052143 is 341250212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212052143 - 2¹² = 212048047 is a prime.

It is a super-2 number, since 2×212052143² = 89932222701784898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212052133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2865533 + ... + 2865606.

It is an arithmetic number, because the mean of its divisors is an integer number (54445830).

Almost surely, 2^212052143 is an apocalyptic number.

212052143 is a deficient number, since it is larger than the sum of its proper divisors (5731177).

212052143 is an equidigital number, since it uses as much as digits as its factorization.

212052143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5731176.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 212052143 is about 14562.0102664433. The cubic root of 212052143 is about 596.3220777312.

The spelling of 212052143 in words is "two hundred twelve million, fifty-two thousand, one hundred forty-three".