211608941 has 2 divisors, whose sum is σ = 211608942. Its totient is φ = 211608940.

The previous prime is 211608923. The next prime is 211608949. The reversal of 211608941 is 149806112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 175006441 + 36602500 = 13229^2 + 6050^2 .

It is a cyclic number.

It is not a de Polignac number, because 211608941 - 2¹⁰ = 211607917 is a prime.

It is a super-2 number, since 2×211608941² = 89556687822282962, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211608898 and 211608907.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211608949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105804470 + 105804471.

It is an arithmetic number, because the mean of its divisors is an integer number (105804471).

Almost surely, 2^211608941 is an apocalyptic number.

It is an amenable number.

211608941 is a deficient number, since it is larger than the sum of its proper divisors (1).

211608941 is an equidigital number, since it uses as much as digits as its factorization.

211608941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 211608941 is about 14546.7845587951. The cubic root of 211608941 is about 595.9063380361.

The spelling of 211608941 in words is "two hundred eleven million, six hundred eight thousand, nine hundred forty-one".