212145113 has 2 divisors, whose sum is σ = 212145114. Its totient is φ = 212145112.

The previous prime is 212145107. The next prime is 212145119. The reversal of 212145113 is 311541212.

212145113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (212145107) and next prime (212145119).

It can be written as a sum of positive squares in only one way, i.e., 211208089 + 937024 = 14533^2 + 968^2 .

It is a cyclic number.

It is not a de Polignac number, because 212145113 - 2⁸ = 212144857 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (212145119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106072556 + 106072557.

It is an arithmetic number, because the mean of its divisors is an integer number (106072557).

Almost surely, 2^212145113 is an apocalyptic number.

It is an amenable number.

212145113 is a deficient number, since it is larger than the sum of its proper divisors (1).

212145113 is an equidigital number, since it uses as much as digits as its factorization.

212145113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 240, while the sum is 20.

The square root of 212145113 is about 14565.2021269875. The cubic root of 212145113 is about 596.4092134746.

Adding to 212145113 its reverse (311541212), we get a palindrome (523686325).

The spelling of 212145113 in words is "two hundred twelve million, one hundred forty-five thousand, one hundred thirteen".