68539194 has 24 divisors (see below), whose sum is σ = 156318240. Its totient is φ = 21643848.

The previous prime is 68539193. The next prime is 68539201. The reversal of 68539194 is 49193586.

It is a happy number.

It is a super-2 number, since 2×68539194² = 9395242228339272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68539193) 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 11 ways as a sum of consecutive naturals, for example, 99862 + ... + 100545.

It is an arithmetic number, because the mean of its divisors is an integer number (6513260).

Almost surely, 2^68539194 is an apocalyptic number.

68539194 is an abundant number, since it is smaller than the sum of its proper divisors (87779046).

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

68539194 is a wasteful number, since it uses less digits than its factorization.

68539194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200434 (or 200431 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 68539194 is about 8278.8401361543. The cubic root of 68539194 is about 409.2414966961.

The spelling of 68539194 in words is "sixty-eight million, five hundred thirty-nine thousand, one hundred ninety-four".