212118937 has 2 divisors, whose sum is σ = 212118938. Its totient is φ = 212118936.

The previous prime is 212118931. The next prime is 212118989. The reversal of 212118937 is 739811212.

212118937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 175589001 + 36529936 = 13251^2 + 6044^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212118937 is a prime.

It is not a weakly prime, because it can be changed into another prime (212118931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106059468 + 106059469.

It is an arithmetic number, because the mean of its divisors is an integer number (106059469).

Almost surely, 2^212118937 is an apocalyptic number.

It is an amenable number.

212118937 is a deficient number, since it is larger than the sum of its proper divisors (1).

212118937 is an equidigital number, since it uses as much as digits as its factorization.

212118937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 34.

The square root of 212118937 is about 14564.3035192212. The cubic root of 212118937 is about 596.3846827033.

The spelling of 212118937 in words is "two hundred twelve million, one hundred eighteen thousand, nine hundred thirty-seven".