213144043 has 8 divisors (see below), whose sum is σ = 244177920. Its totient is φ = 182256360.

The previous prime is 213143999. The next prime is 213144047. The reversal of 213144043 is 340441312.

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-213144043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213144047) 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, 33403 + ... + 39268.

It is an arithmetic number, because the mean of its divisors is an integer number (30522240).

Almost surely, 2^213144043 is an apocalyptic number.

213144043 is a deficient number, since it is larger than the sum of its proper divisors (31033877).

213144043 is an equidigital number, since it uses as much as digits as its factorization.

213144043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73097.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 213144043 is about 14599.4535171697. The cubic root of 213144043 is about 597.3438542042.

Adding to 213144043 its reverse (340441312), we get a palindrome (553585355).

The spelling of 213144043 in words is "two hundred thirteen million, one hundred forty-four thousand, forty-three".