206223465 has 16 divisors (see below), whose sum is σ = 377094528. Its totient is φ = 94273536.

The previous prime is 206223463. The next prime is 206223509. The reversal of 206223465 is 564322602.

It is not a de Polignac number, because 206223465 - 2¹ = 206223463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (206223463) 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 15 ways as a sum of consecutive naturals, for example, 981912 + ... + 982121.

It is an arithmetic number, because the mean of its divisors is an integer number (23568408).

Almost surely, 2^206223465 is an apocalyptic number.

It is an amenable number.

206223465 is a deficient number, since it is larger than the sum of its proper divisors (170871063).

206223465 is a wasteful number, since it uses less digits than its factorization.

206223465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1964048.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 206223465 is about 14360.4827565093. The cubic root of 206223465 is about 590.8075363687.

The spelling of 206223465 in words is "two hundred six million, two hundred twenty-three thousand, four hundred sixty-five".