68541222 has 8 divisors (see below), whose sum is σ = 137082456. Its totient is φ = 22847072.

The previous prime is 68541211. The next prime is 68541223. The reversal of 68541222 is 22214586.

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

68541222 is an admirable number.

It is a super-2 number, since 2×68541222² = 9395798226506568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68541222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68541223) 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 in 3 ways as a sum of consecutive naturals, for example, 5711763 + ... + 5711774.

It is an arithmetic number, because the mean of its divisors is an integer number (17135307).

Almost surely, 2^68541222 is an apocalyptic number.

68541222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68541222 is a wasteful number, since it uses less digits than its factorization.

68541222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11423542.

The product of its digits is 7680, while the sum is 30.

The square root of 68541222 is about 8278.9626161736. The cubic root of 68541222 is about 409.2455329928.

The spelling of 68541222 in words is "sixty-eight million, five hundred forty-one thousand, two hundred twenty-two".