212056393 has 2 divisors, whose sum is σ = 212056394. Its totient is φ = 212056392.

The previous prime is 212056391. The next prime is 212056417. The reversal of 212056393 is 393650212.

212056393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145274809 + 66781584 = 12053^2 + 8172^2 .

It is a cyclic number.

It is not a de Polignac number, because 212056393 - 2¹ = 212056391 is a prime.

Together with 212056391, it forms a pair of twin primes.

It is equal to p_11708824 and since 212056393 and 11708824 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (212056391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106028196 + 106028197.

It is an arithmetic number, because the mean of its divisors is an integer number (106028197).

Almost surely, 2^212056393 is an apocalyptic number.

It is an amenable number.

212056393 is a deficient number, since it is larger than the sum of its proper divisors (1).

212056393 is an equidigital number, since it uses as much as digits as its factorization.

212056393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 212056393 is about 14562.1561933664. The cubic root of 212056393 is about 596.3260615814.

The spelling of 212056393 in words is "two hundred twelve million, fifty-six thousand, three hundred ninety-three".