206674453 has 2 divisors, whose sum is σ = 206674454. Its totient is φ = 206674452.

The previous prime is 206674411. The next prime is 206674477. The reversal of 206674453 is 354476602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205578244 + 1096209 = 14338^2 + 1047^2 .

It is a cyclic number.

It is not a de Polignac number, because 206674453 - 2⁹ = 206673941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206674483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103337226 + 103337227.

It is an arithmetic number, because the mean of its divisors is an integer number (103337227).

Almost surely, 2^206674453 is an apocalyptic number.

It is an amenable number.

206674453 is a deficient number, since it is larger than the sum of its proper divisors (1).

206674453 is an equidigital number, since it uses as much as digits as its factorization.

206674453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 37.

The square root of 206674453 is about 14376.1765779362. The cubic root of 206674453 is about 591.2378998011.

The spelling of 206674453 in words is "two hundred six million, six hundred seventy-four thousand, four hundred fifty-three".