206464913 has 2 divisors, whose sum is σ = 206464914. Its totient is φ = 206464912.

The previous prime is 206464897. The next prime is 206464927. The reversal of 206464913 is 319464602.

206464913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160604929 + 45859984 = 12673^2 + 6772^2 .

It is a cyclic number.

It is not a de Polignac number, because 206464913 - 2⁴ = 206464897 is a prime.

It is not a weakly prime, because it can be changed into another prime (206464943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103232456 + 103232457.

It is an arithmetic number, because the mean of its divisors is an integer number (103232457).

Almost surely, 2^206464913 is an apocalyptic number.

It is an amenable number.

206464913 is a deficient number, since it is larger than the sum of its proper divisors (1).

206464913 is an equidigital number, since it uses as much as digits as its factorization.

206464913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 206464913 is about 14368.8869784684. The cubic root of 206464913 is about 591.0380204258.

The spelling of 206464913 in words is "two hundred six million, four hundred sixty-four thousand, nine hundred thirteen".