212926081 has 2 divisors, whose sum is σ = 212926082. Its totient is φ = 212926080.

The previous prime is 212926057. The next prime is 212926097. The reversal of 212926081 is 180629212.

212926081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200081025 + 12845056 = 14145^2 + 3584^2 .

It is a cyclic number.

It is not a de Polignac number, because 212926081 - 2²⁵ = 179371649 is a prime.

It is a super-2 number, since 2×212926081² = 90675031940037122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212926481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106463040 + 106463041.

It is an arithmetic number, because the mean of its divisors is an integer number (106463041).

Almost surely, 2^212926081 is an apocalyptic number.

It is an amenable number.

212926081 is a deficient number, since it is larger than the sum of its proper divisors (1).

212926081 is an equidigital number, since it uses as much as digits as its factorization.

212926081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 212926081 is about 14591.9868763647. The cubic root of 212926081 is about 597.1401693080.

The spelling of 212926081 in words is "two hundred twelve million, nine hundred twenty-six thousand, eighty-one".