168280169 has 8 divisors (see below), whose sum is σ = 177612000. Its totient is φ = 158995872.

The previous prime is 168280129. The next prime is 168280193. The reversal of 168280169 is 961082861.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168280169 is a prime.

It is a super-2 number, since 2×168280169² = 56636430557337122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (168280109) 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 7 ways as a sum of consecutive naturals, for example, 4484 + ... + 18885.

It is an arithmetic number, because the mean of its divisors is an integer number (22201500).

Almost surely, 2^168280169 is an apocalyptic number.

168280169 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

168280169 is a deficient number, since it is larger than the sum of its proper divisors (9331831).

168280169 is a wasteful number, since it uses less digits than its factorization.

168280169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23767.

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 168280169 is about 12972.2846484341. The cubic root of 168280169 is about 552.0913970782.

The spelling of 168280169 in words is "one hundred sixty-eight million, two hundred eighty thousand, one hundred sixty-nine".