206454530 has 8 divisors (see below), whose sum is σ = 371618172. Its totient is φ = 82581808.

The previous prime is 206454527. The next prime is 206454533. The reversal of 206454530 is 35454602.

It is an interprime number because it is at equal distance from previous prime (206454527) and next prime (206454533).

It can be written as a sum of positive squares in 2 ways, for example, as 199854769 + 6599761 = 14137^2 + 2569^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 206454493 and 206454502.

It is not an unprimeable number, because it can be changed into a prime (206454533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10322717 + ... + 10322736.

Almost surely, 2^206454530 is an apocalyptic number.

206454530 is a deficient number, since it is larger than the sum of its proper divisors (165163642).

206454530 is a wasteful number, since it uses less digits than its factorization.

206454530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20645460.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 206454530 is about 14368.5256724551. The cubic root of 206454530 is about 591.0281126073.

The spelling of 206454530 in words is "two hundred six million, four hundred fifty-four thousand, five hundred thirty".