68306156 has 12 divisors (see below), whose sum is σ = 119599368. Its totient is φ = 34134912.

The previous prime is 68306149. The next prime is 68306167. The reversal of 68306156 is 65160386.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7415 + ... + 13841.

It is an arithmetic number, because the mean of its divisors is an integer number (9966614).

Almost surely, 2^68306156 is an apocalyptic number.

It is an amenable number.

68306156 is a deficient number, since it is larger than the sum of its proper divisors (51293212).

68306156 is a wasteful number, since it uses less digits than its factorization.

68306156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9088 (or 9086 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 68306156 is about 8264.7538378345. The cubic root of 68306156 is about 408.7771535671. Note that the first 3 decimals are identical.

The spelling of 68306156 in words is "sixty-eight million, three hundred six thousand, one hundred fifty-six".