212345927 has 2 divisors, whose sum is σ = 212345928. Its totient is φ = 212345926.

The previous prime is 212345893. The next prime is 212345951. The reversal of 212345927 is 729543212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212345927 is a prime.

It is a super-3 number, since 3×212345927³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212345327) 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 as a sum of consecutive naturals, namely, 106172963 + 106172964.

It is an arithmetic number, because the mean of its divisors is an integer number (106172964).

Almost surely, 2^212345927 is an apocalyptic number.

212345927 is a deficient number, since it is larger than the sum of its proper divisors (1).

212345927 is an equidigital number, since it uses as much as digits as its factorization.

212345927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 35.

The square root of 212345927 is about 14572.0941185541. The cubic root of 212345927 is about 596.5973387125.

The spelling of 212345927 in words is "two hundred twelve million, three hundred forty-five thousand, nine hundred twenty-seven".