68256123 has 16 divisors (see below), whose sum is σ = 98335776. Its totient is φ = 41863680.

The previous prime is 68256107. The next prime is 68256161. The reversal of 68256123 is 32165286.

It is not a de Polignac number, because 68256123 - 2⁴ = 68256107 is a prime.

It is a super-2 number, since 2×68256123² = 9317796653982258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68256323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9603 + ... + 15123.

It is an arithmetic number, because the mean of its divisors is an integer number (6145986).

Almost surely, 2^68256123 is an apocalyptic number.

68256123 is a deficient number, since it is larger than the sum of its proper divisors (30079653).

68256123 is a wasteful number, since it uses less digits than its factorization.

68256123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5854.

The product of its digits is 17280, while the sum is 33.

The square root of 68256123 is about 8261.7263934362. The cubic root of 68256123 is about 408.6773219453.

The spelling of 68256123 in words is "sixty-eight million, two hundred fifty-six thousand, one hundred twenty-three".