212630003 has 4 divisors (see below), whose sum is σ = 214057200. Its totient is φ = 211202808.

The previous prime is 212629997. The next prime is 212630017. The reversal of 212630003 is 300036212.

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 212630003 - 2⁴ = 212629987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212630063) 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, 713375 + ... + 713672.

It is an arithmetic number, because the mean of its divisors is an integer number (53514300).

Almost surely, 2^212630003 is an apocalyptic number.

212630003 is a deficient number, since it is larger than the sum of its proper divisors (1427197).

212630003 is a wasteful number, since it uses less digits than its factorization.

212630003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427196.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 212630003 is about 14581.8381214441. The cubic root of 212630003 is about 596.8632624466.

Adding to 212630003 its reverse (300036212), we get a palindrome (512666215).

The spelling of 212630003 in words is "two hundred twelve million, six hundred thirty thousand, three".