206100046 has 4 divisors (see below), whose sum is σ = 309150072. Its totient is φ = 103050022.

The previous prime is 206100017. The next prime is 206100047. The reversal of 206100046 is 640001602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 640001602 = 2 ⋅320000801.

It is a super-2 number, since 2×206100046² = 84954457922404232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 206099996 and 206100032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206100047) 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, 51525010 + ... + 51525013.

It is an arithmetic number, because the mean of its divisors is an integer number (77287518).

Almost surely, 2^206100046 is an apocalyptic number.

206100046 is a deficient number, since it is larger than the sum of its proper divisors (103050026).

206100046 is a wasteful number, since it uses less digits than its factorization.

206100046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103050025.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 206100046 is about 14356.1849389035. The cubic root of 206100046 is about 590.6896522304.

Adding to 206100046 its reverse (640001602), we get a palindrome (846101648).

The spelling of 206100046 in words is "two hundred six million, one hundred thousand, forty-six".