212676161 has 2 divisors, whose sum is σ = 212676162. Its totient is φ = 212676160.

The previous prime is 212676127. The next prime is 212676187. The reversal of 212676161 is 161676212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189337600 + 23338561 = 13760^2 + 4831^2 .

It is a cyclic number.

It is not a de Polignac number, because 212676161 - 2⁶ = 212676097 is a prime.

It is a super-2 number, since 2×212676161² = 90462298915395842, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (212676361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106338080 + 106338081.

It is an arithmetic number, because the mean of its divisors is an integer number (106338081).

Almost surely, 2^212676161 is an apocalyptic number.

It is an amenable number.

212676161 is a deficient number, since it is larger than the sum of its proper divisors (1).

212676161 is an equidigital number, since it uses as much as digits as its factorization.

212676161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 32.

The square root of 212676161 is about 14583.4207578332. The cubic root of 212676161 is about 596.9064486084.

It can be divided in two parts, 2126 and 76161, that added together give a palindrome (78287).

The spelling of 212676161 in words is "two hundred twelve million, six hundred seventy-six thousand, one hundred sixty-one".