212732065 has 16 divisors (see below), whose sum is σ = 314189568. Its totient is φ = 134652096.

The previous prime is 212732063. The next prime is 212732077. The reversal of 212732065 is 560237212.

It is a cyclic number.

It is not a de Polignac number, because 212732065 - 2¹ = 212732063 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212732063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233317 + ... + 234226.

It is an arithmetic number, because the mean of its divisors is an integer number (19636848).

Almost surely, 2^212732065 is an apocalyptic number.

It is an amenable number.

212732065 is a deficient number, since it is larger than the sum of its proper divisors (101457503).

212732065 is a wasteful number, since it uses less digits than its factorization.

212732065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467568.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 212732065 is about 14585.3373289753. The cubic root of 212732065 is about 596.9587449174.

Adding to 212732065 its reverse (560237212), we get a palindrome (772969277).

The spelling of 212732065 in words is "two hundred twelve million, seven hundred thirty-two thousand, sixty-five".