210102106 has 4 divisors (see below), whose sum is σ = 315153162. Its totient is φ = 105051052.

The previous prime is 210102089. The next prime is 210102121. The reversal of 210102106 is 601201012.

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

It can be written as a sum of positive squares in only one way, i.e., 206066025 + 4036081 = 14355^2 + 2009^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52525525 + ... + 52525528.

Almost surely, 2^210102106 is an apocalyptic number.

210102106 is a deficient number, since it is larger than the sum of its proper divisors (105051056).

210102106 is a wasteful number, since it uses less digits than its factorization.

210102106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105051055.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 210102106 is about 14494.8993097572. The cubic root of 210102106 is about 594.4885146029.

Adding to 210102106 its reverse (601201012), we get a palindrome (811303118).

The spelling of 210102106 in words is "two hundred ten million, one hundred two thousand, one hundred six".