206513453 has 2 divisors, whose sum is σ = 206513454. Its totient is φ = 206513452.

The previous prime is 206513401. The next prime is 206513473. The reversal of 206513453 is 354315602.

206513453 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., 156075049 + 50438404 = 12493^2 + 7102^2 .

It is a cyclic number.

It is not a de Polignac number, because 206513453 - 2¹² = 206509357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206513473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103256726 + 103256727.

It is an arithmetic number, because the mean of its divisors is an integer number (103256727).

Almost surely, 2^206513453 is an apocalyptic number.

It is an amenable number.

206513453 is a deficient number, since it is larger than the sum of its proper divisors (1).

206513453 is an equidigital number, since it uses as much as digits as its factorization.

206513453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 206513453 is about 14370.5759453127. The cubic root of 206513453 is about 591.0843345704.

The spelling of 206513453 in words is "two hundred six million, five hundred thirteen thousand, four hundred fifty-three".