212002143 has 4 divisors (see below), whose sum is σ = 282669528. Its totient is φ = 141334760.

The previous prime is 212002129. The next prime is 212002181. The reversal of 212002143 is 341200212.

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 212002143 - 2⁵ = 212002111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212002123) 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, 35333688 + ... + 35333693.

It is an arithmetic number, because the mean of its divisors is an integer number (70667382).

Almost surely, 2^212002143 is an apocalyptic number.

212002143 is a deficient number, since it is larger than the sum of its proper divisors (70667385).

212002143 is an equidigital number, since it uses as much as digits as its factorization.

212002143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70667384.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 212002143 is about 14560.2933692972. The cubic root of 212002143 is about 596.2752049083.

Adding to 212002143 its reverse (341200212), we get a palindrome (553202355).

The spelling of 212002143 in words is "two hundred twelve million, two thousand, one hundred forty-three".