206164534 has 4 divisors (see below), whose sum is σ = 309246804. Its totient is φ = 103082266.

The previous prime is 206164531. The next prime is 206164547. The reversal of 206164534 is 435461602.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 206164496 and 206164505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206164531) 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 as a sum of consecutive naturals, namely, 51541132 + ... + 51541135.

It is an arithmetic number, because the mean of its divisors is an integer number (77311701).

Almost surely, 2^206164534 is an apocalyptic number.

206164534 is a deficient number, since it is larger than the sum of its proper divisors (103082270).

206164534 is a wasteful number, since it uses less digits than its factorization.

206164534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103082269.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 206164534 is about 14358.4307638405. The cubic root of 206164534 is about 590.7512540637.

The spelling of 206164534 in words is "two hundred six million, one hundred sixty-four thousand, five hundred thirty-four".