168306849 has 16 divisors (see below), whose sum is σ = 252858240. Its totient is φ = 110622960.

The previous prime is 168306839. The next prime is 168306871. The reversal of 168306849 is 948603861.

It is not a de Polignac number, because 168306849 - 2²⁴ = 151529633 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (168306839) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41982 + ... + 45815.

It is an arithmetic number, because the mean of its divisors is an integer number (15803640).

Almost surely, 2^168306849 is an apocalyptic number.

It is an amenable number.

168306849 is a deficient number, since it is larger than the sum of its proper divisors (84551391).

168306849 is an equidigital number, since it uses as much as digits as its factorization.

168306849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87877 (or 87871 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 168306849 is about 12973.3129539066. The cubic root of 168306849 is about 552.1205726691.

The spelling of 168306849 in words is "one hundred sixty-eight million, three hundred six thousand, eight hundred forty-nine".