168517049 has 8 divisors (see below), whose sum is σ = 170427648. Its totient is φ = 166617360.

The previous prime is 168517003. The next prime is 168517079. The reversal of 168517049 is 940715861.

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

It is a cyclic number.

It is not a de Polignac number, because 168517049 - 2¹⁶ = 168451513 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 168516997 and 168517015.

It is not an unprimeable number, because it can be changed into a prime (168517079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30584 + ... + 35670.

It is an arithmetic number, because the mean of its divisors is an integer number (21303456).

Almost surely, 2^168517049 is an apocalyptic number.

It is an amenable number.

168517049 is a deficient number, since it is larger than the sum of its proper divisors (1910599).

168517049 is a wasteful number, since it uses less digits than its factorization.

168517049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5455.

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 168517049 is about 12981.4116720794. The cubic root of 168517049 is about 552.3503265664.

The spelling of 168517049 in words is "one hundred sixty-eight million, five hundred seventeen thousand, forty-nine".