212130743 has 8 divisors (see below), whose sum is σ = 245028240. Its totient is φ = 181502080.

The previous prime is 212130727. The next prime is 212130769. The reversal of 212130743 is 347031212.

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

It is a cyclic number.

It is not a de Polignac number, because 212130743 - 2⁴ = 212130727 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 (212130943) 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 7 ways as a sum of consecutive naturals, for example, 567008 + ... + 567381.

It is an arithmetic number, because the mean of its divisors is an integer number (30628530).

Almost surely, 2^212130743 is an apocalyptic number.

212130743 is a deficient number, since it is larger than the sum of its proper divisors (32897497).

212130743 is a wasteful number, since it uses less digits than its factorization.

212130743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134417.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 212130743 is about 14564.7088196091. The cubic root of 212130743 is about 596.3957469158.

Adding to 212130743 its reverse (347031212), we get a palindrome (559161955).

The spelling of 212130743 in words is "two hundred twelve million, one hundred thirty thousand, seven hundred forty-three".