211132057 has 2 divisors, whose sum is σ = 211132058. Its totient is φ = 211132056.

The previous prime is 211132013. The next prime is 211132063. The reversal of 211132057 is 750231112.

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., 179051161 + 32080896 = 13381^2 + 5664^2 .

It is a cyclic number.

It is not a de Polignac number, because 211132057 - 2¹¹ = 211130009 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (211132067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105566028 + 105566029.

It is an arithmetic number, because the mean of its divisors is an integer number (105566029).

Almost surely, 2^211132057 is an apocalyptic number.

It is an amenable number.

211132057 is a deficient number, since it is larger than the sum of its proper divisors (1).

211132057 is an equidigital number, since it uses as much as digits as its factorization.

211132057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 211132057 is about 14530.3839247282. The cubic root of 211132057 is about 595.4583545372.

Adding to 211132057 its reverse (750231112), we get a palindrome (961363169).

The spelling of 211132057 in words is "two hundred eleven million, one hundred thirty-two thousand, fifty-seven".