212345093 has 2 divisors, whose sum is σ = 212345094. Its totient is φ = 212345092.

The previous prime is 212345057. The next prime is 212345123. The reversal of 212345093 is 390543212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197767969 + 14577124 = 14063^2 + 3818^2 .

It is a cyclic number.

It is not a de Polignac number, because 212345093 - 2²⁰ = 211296517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212345033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106172546 + 106172547.

It is an arithmetic number, because the mean of its divisors is an integer number (106172547).

Almost surely, 2^212345093 is an apocalyptic number.

It is an amenable number.

212345093 is a deficient number, since it is larger than the sum of its proper divisors (1).

212345093 is an equidigital number, since it uses as much as digits as its factorization.

212345093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 212345093 is about 14572.0655021860. The cubic root of 212345093 is about 596.5965576554.

The spelling of 212345093 in words is "two hundred twelve million, three hundred forty-five thousand, ninety-three".