68155142 has 16 divisors (see below), whose sum is σ = 118087632. Its totient is φ = 29157120.

The previous prime is 68155121. The next prime is 68155181. The reversal of 68155142 is 24155186.

It is a junction number, because it is equal to n+sod(n) for n = 68155099 and 68155108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90743 + ... + 91490.

It is an arithmetic number, because the mean of its divisors is an integer number (7380477).

Almost surely, 2^68155142 is an apocalyptic number.

68155142 is a deficient number, since it is larger than the sum of its proper divisors (49932490).

68155142 is a wasteful number, since it uses less digits than its factorization.

68155142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182263.

The product of its digits is 9600, while the sum is 32.

The square root of 68155142 is about 8255.6127573912. The cubic root of 68155142 is about 408.4756842943.

The spelling of 68155142 in words is "sixty-eight million, one hundred fifty-five thousand, one hundred forty-two".