168283489 has 4 divisors (see below), whose sum is σ = 183582000. Its totient is φ = 152984980.

The previous prime is 168283481. The next prime is 168283529. The reversal of 168283489 is 984382861.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 168283489 - 2³ = 168283481 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168283481) by changing a digit.

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, 7649239 + ... + 7649260.

It is an arithmetic number, because the mean of its divisors is an integer number (45895500).

Almost surely, 2^168283489 is an apocalyptic number.

It is an amenable number.

168283489 is a deficient number, since it is larger than the sum of its proper divisors (15298511).

168283489 is a wasteful number, since it uses less digits than its factorization.

168283489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15298510.

The product of its digits is 663552, while the sum is 49.

The square root of 168283489 is about 12972.4126129259. The cubic root of 168283489 is about 552.0950277920.

The spelling of 168283489 in words is "one hundred sixty-eight million, two hundred eighty-three thousand, four hundred eighty-nine".