206113445 has 4 divisors (see below), whose sum is σ = 247336140. Its totient is φ = 164890752.

The previous prime is 206113399. The next prime is 206113483. The reversal of 206113445 is 544311602.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45508516 + 160604929 = 6746^2 + 12673^2 .

It is a cyclic number.

It is not a de Polignac number, because 206113445 - 2⁶ = 206113381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20611340 + ... + 20611349.

It is an arithmetic number, because the mean of its divisors is an integer number (61834035).

Almost surely, 2^206113445 is an apocalyptic number.

It is an amenable number.

206113445 is a deficient number, since it is larger than the sum of its proper divisors (41222695).

206113445 is an equidigital number, since it uses as much as digits as its factorization.

206113445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41222694.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 206113445 is about 14356.6515942959. The cubic root of 206113445 is about 590.7024526143.

The spelling of 206113445 in words is "two hundred six million, one hundred thirteen thousand, four hundred forty-five".