212770841 has 2 divisors, whose sum is σ = 212770842. Its totient is φ = 212770840.

The previous prime is 212770813. The next prime is 212770849. The reversal of 212770841 is 148077212.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 191241241 + 21529600 = 13829^2 + 4640^2 .

It is a cyclic number.

It is not a de Polignac number, because 212770841 - 2⁶ = 212770777 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 212770798 and 212770807.

It is not a weakly prime, because it can be changed into another prime (212770849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106385420 + 106385421.

It is an arithmetic number, because the mean of its divisors is an integer number (106385421).

Almost surely, 2^212770841 is an apocalyptic number.

It is an amenable number.

212770841 is a deficient number, since it is larger than the sum of its proper divisors (1).

212770841 is an equidigital number, since it uses as much as digits as its factorization.

212770841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 212770841 is about 14586.6665485984. Note that the first 3 decimals coincide. The cubic root of 212770841 is about 596.9950131782.

The spelling of 212770841 in words is "two hundred twelve million, seven hundred seventy thousand, eight hundred forty-one".