212652681 has 8 divisors (see below), whose sum is σ = 283606080. Its totient is φ = 141733872.

The previous prime is 212652647. The next prime is 212652689. The reversal of 212652681 is 186256212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212652681 - 2¹⁴ = 212636297 is a prime.

It is a super-2 number, since 2×212652681² = 90442325472975522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212652689) 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 in 7 ways as a sum of consecutive naturals, for example, 14731 + ... + 25343.

It is an arithmetic number, because the mean of its divisors is an integer number (35450760).

Almost surely, 2^212652681 is an apocalyptic number.

It is an amenable number.

212652681 is a deficient number, since it is larger than the sum of its proper divisors (70953399).

212652681 is a wasteful number, since it uses less digits than its factorization.

212652681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17295.

The product of its digits is 11520, while the sum is 33.

The square root of 212652681 is about 14582.6157118673. The cubic root of 212652681 is about 596.8844811264.

The spelling of 212652681 in words is "two hundred twelve million, six hundred fifty-two thousand, six hundred eighty-one".