68120210 has 8 divisors (see below), whose sum is σ = 122616396. Its totient is φ = 27248080.

The previous prime is 68120209. The next prime is 68120231. The reversal of 68120210 is 1202186.

It can be written as a sum of positive squares in 2 ways, for example, as 68079001 + 41209 = 8251^2 + 203^2 .

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3406001 + ... + 3406020.

Almost surely, 2^68120210 is an apocalyptic number.

68120210 is a deficient number, since it is larger than the sum of its proper divisors (54496186).

68120210 is a wasteful number, since it uses less digits than its factorization.

68120210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6812028.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 68120210 is about 8253.4968346756. The cubic root of 68120210 is about 408.4058861316.

Adding to 68120210 its reverse (1202186), we get a palindrome (69322396).

The spelling of 68120210 in words is "sixty-eight million, one hundred twenty thousand, two hundred ten".