68156 has 12 divisors (see below), whose sum is σ = 130200. Its totient is φ = 30960.

The previous prime is 68147. The next prime is 68161. The reversal of 68156 is 65186.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 68156.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 731 + ... + 818.

It is an arithmetic number, because the mean of its divisors is an integer number (10850).

2⁶⁸¹⁵⁶ is an apocalyptic number.

It is an amenable number.

68156 is a deficient number, since it is larger than the sum of its proper divisors (62044).

68156 is a wasteful number, since it uses less digits than its factorization.

68156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564 (or 1562 counting only the distinct ones).

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

The square root of 68156 is about 261.0670411982. The cubic root of 68156 is about 40.8477398377.

Adding to 68156 its product of digits (1440), we get a palindrome (69596).

It can be divided in two parts, 681 and 56, that added together give a palindrome (737).

The spelling of 68156 in words is "sixty-eight thousand, one hundred fifty-six".