212645413 has 2 divisors, whose sum is σ = 212645414. Its totient is φ = 212645412.

The previous prime is 212645383. The next prime is 212645431. The reversal of 212645413 is 314546212.

212645413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with next prime (212645431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209178369 + 3467044 = 14463^2 + 1862^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212645413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212645453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106322706 + 106322707.

It is an arithmetic number, because the mean of its divisors is an integer number (106322707).

Almost surely, 2^212645413 is an apocalyptic number.

It is an amenable number.

212645413 is a deficient number, since it is larger than the sum of its proper divisors (1).

212645413 is an equidigital number, since it uses as much as digits as its factorization.

212645413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 28.

The square root of 212645413 is about 14582.3665089038. The cubic root of 212645413 is about 596.8776809835.

The spelling of 212645413 in words is "two hundred twelve million, six hundred forty-five thousand, four hundred thirteen".