212552237 has 2 divisors, whose sum is σ = 212552238. Its totient is φ = 212552236.

The previous prime is 212552201. The next prime is 212552261. The reversal of 212552237 is 732255212.

212552237 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148328041 + 64224196 = 12179^2 + 8014^2 .

It is a cyclic number.

It is not a de Polignac number, because 212552237 - 2²⁰ = 211503661 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212552287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106276118 + 106276119.

It is an arithmetic number, because the mean of its divisors is an integer number (106276119).

Almost surely, 2^212552237 is an apocalyptic number.

It is an amenable number.

212552237 is a deficient number, since it is larger than the sum of its proper divisors (1).

212552237 is an equidigital number, since it uses as much as digits as its factorization.

212552237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 29.

The square root of 212552237 is about 14579.1713413349. The cubic root of 212552237 is about 596.7904891979.

The spelling of 212552237 in words is "two hundred twelve million, five hundred fifty-two thousand, two hundred thirty-seven".