213000143 has 4 divisors (see below), whose sum is σ = 214081560. Its totient is φ = 211918728.

The previous prime is 213000133. The next prime is 213000149. The reversal of 213000143 is 341000312.

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 213000143 - 2¹⁴ = 212983759 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 (213000149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540413 + ... + 540806.

It is an arithmetic number, because the mean of its divisors is an integer number (53520390).

Almost surely, 2^213000143 is an apocalyptic number.

213000143 is a deficient number, since it is larger than the sum of its proper divisors (1081417).

213000143 is a wasteful number, since it uses less digits than its factorization.

213000143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081416.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 213000143 is about 14594.5244184249. The cubic root of 213000143 is about 597.2093956304.

Adding to 213000143 its reverse (341000312), we get a palindrome (554000455).

The spelling of 213000143 in words is "two hundred thirteen million, one hundred forty-three", and thus it is an aban number.