168912742 has 8 divisors (see below), whose sum is σ = 254234736. Its totient is φ = 84167832.

The previous prime is 168912691. The next prime is 168912761. The reversal of 168912742 is 247219861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 168912695 and 168912704.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 143538 + ... + 144709.

It is an arithmetic number, because the mean of its divisors is an integer number (31779342).

Almost surely, 2^168912742 is an apocalyptic number.

168912742 is a deficient number, since it is larger than the sum of its proper divisors (85321994).

168912742 is a wasteful number, since it uses less digits than its factorization.

168912742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288542.

The product of its digits is 48384, while the sum is 40.

The square root of 168912742 is about 12996.6434897630. The cubic root of 168912742 is about 552.7823111734.

The spelling of 168912742 in words is "one hundred sixty-eight million, nine hundred twelve thousand, seven hundred forty-two".