212094427 has 2 divisors, whose sum is σ = 212094428. Its totient is φ = 212094426.

The previous prime is 212094413. The next prime is 212094433. The reversal of 212094427 is 724490212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212094427 is a prime.

It is not a weakly prime, because it can be changed into another prime (212092427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106047213 + 106047214.

It is an arithmetic number, because the mean of its divisors is an integer number (106047214).

Almost surely, 2^212094427 is an apocalyptic number.

212094427 is a deficient number, since it is larger than the sum of its proper divisors (1).

212094427 is an equidigital number, since it uses as much as digits as its factorization.

212094427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 212094427 is about 14563.4620540584. The cubic root of 212094427 is about 596.3617113901.

It can be divided in two parts, 212094 and 427, that added together give a square (212521 = 461²).

The spelling of 212094427 in words is "two hundred twelve million, ninety-four thousand, four hundred twenty-seven".