68531210 has 32 divisors (see below), whose sum is σ = 134911872. Its totient is φ = 24857280.

The previous prime is 68531201. The next prime is 68531249. The reversal of 68531210 is 1213586.

It is a self number, because there is not a number n which added to its sum of digits gives 68531210.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82859 + ... + 83681.

It is an arithmetic number, because the mean of its divisors is an integer number (4215996).

Almost surely, 2^68531210 is an apocalyptic number.

68531210 is a deficient number, since it is larger than the sum of its proper divisors (66380662).

68531210 is a wasteful number, since it uses less digits than its factorization.

68531210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1598.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 68531210 is about 8278.3579289615. The cubic root of 68531210 is about 409.2256054919.

Adding to 68531210 its reverse (1213586), we get a palindrome (69744796).

The spelling of 68531210 in words is "sixty-eight million, five hundred thirty-one thousand, two hundred ten".