210505106 has 8 divisors (see below), whose sum is σ = 360865920. Its totient is φ = 90216468.

The previous prime is 210505103. The next prime is 210505133. The reversal of 210505106 is 601505012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (210505103) by changing a digit.

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, 7518026 + ... + 7518053.

It is an arithmetic number, because the mean of its divisors is an integer number (45108240).

Almost surely, 2^210505106 is an apocalyptic number.

210505106 is a deficient number, since it is larger than the sum of its proper divisors (150360814).

210505106 is a wasteful number, since it uses less digits than its factorization.

210505106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15036088.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 210505106 is about 14508.7940918603. The cubic root of 210505106 is about 594.8683709484.

The spelling of 210505106 in words is "two hundred ten million, five hundred five thousand, one hundred six".