206945753 has 4 divisors (see below), whose sum is σ = 236509440. Its totient is φ = 177382068.

The previous prime is 206945693. The next prime is 206945771. The reversal of 206945753 is 357549602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 206945753 - 2⁶ = 206945689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 206945753.

It is not an unprimeable number, because it can be changed into a prime (206945153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14781833 + ... + 14781846.

It is an arithmetic number, because the mean of its divisors is an integer number (59127360).

Almost surely, 2^206945753 is an apocalyptic number.

It is an amenable number.

206945753 is a deficient number, since it is larger than the sum of its proper divisors (29563687).

206945753 is an equidigital number, since it uses as much as digits as its factorization.

206945753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29563686.

The product of its (nonzero) digits is 226800, while the sum is 41.

The square root of 206945753 is about 14385.6092328410. The cubic root of 206945753 is about 591.4964911985.

The spelling of 206945753 in words is "two hundred six million, nine hundred forty-five thousand, seven hundred fifty-three".