168312949 has 8 divisors (see below), whose sum is σ = 193584128. Its totient is φ = 143348400.

The previous prime is 168312941. The next prime is 168312953. The reversal of 168312949 is 949213861.

It is a happy number.

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 168312949 - 2³ = 168312941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168312941) 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, 75477 + ... + 77674.

It is an arithmetic number, because the mean of its divisors is an integer number (24198016).

Almost surely, 2^168312949 is an apocalyptic number.

It is an amenable number.

168312949 is a deficient number, since it is larger than the sum of its proper divisors (25271179).

168312949 is a wasteful number, since it uses less digits than its factorization.

168312949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153315.

The product of its digits is 93312, while the sum is 43.

The square root of 168312949 is about 12973.5480497819. The cubic root of 168312949 is about 552.1272428172.

The spelling of 168312949 in words is "one hundred sixty-eight million, three hundred twelve thousand, nine hundred forty-nine".