212544061 has 2 divisors, whose sum is σ = 212544062. Its totient is φ = 212544060.

The previous prime is 212544053. The next prime is 212544077. The reversal of 212544061 is 160445212.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157502500 + 55041561 = 12550^2 + 7419^2 .

It is a cyclic number.

It is not a de Polignac number, because 212544061 - 2³ = 212544053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212544001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106272030 + 106272031.

It is an arithmetic number, because the mean of its divisors is an integer number (106272031).

Almost surely, 2^212544061 is an apocalyptic number.

It is an amenable number.

212544061 is a deficient number, since it is larger than the sum of its proper divisors (1).

212544061 is an equidigital number, since it uses as much as digits as its factorization.

212544061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 212544061 is about 14578.8909386140. The cubic root of 212544061 is about 596.7828370843.

Adding to 212544061 its reverse (160445212), we get a palindrome (372989273).

The spelling of 212544061 in words is "two hundred twelve million, five hundred forty-four thousand, sixty-one".