212907203 has 4 divisors (see below), whose sum is σ = 215905968. Its totient is φ = 209908440.

The previous prime is 212907199. The next prime is 212907221. The reversal of 212907203 is 302709212.

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 212907203 - 2² = 212907199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212907403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1499276 + ... + 1499417.

It is an arithmetic number, because the mean of its divisors is an integer number (53976492).

Almost surely, 2^212907203 is an apocalyptic number.

212907203 is a deficient number, since it is larger than the sum of its proper divisors (2998765).

212907203 is an equidigital number, since it uses as much as digits as its factorization.

212907203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2998764.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 212907203 is about 14591.3400001508. The cubic root of 212907203 is about 597.1225213286.

The spelling of 212907203 in words is "two hundred twelve million, nine hundred seven thousand, two hundred three".