168022957 has 6 divisors (see below), whose sum is σ = 172645134. Its totient is φ = 163405080.

The previous prime is 168022931. The next prime is 168023003. The reversal of 168022957 is 759220861.

168022957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 163481796 + 4541161 = 12786^2 + 2131^2 .

It is a de Polignac number, because none of the positive numbers 2^k-168022957 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 (168022927) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77782 + ... + 79912.

It is an arithmetic number, because the mean of its divisors is an integer number (28774189).

Almost surely, 2^168022957 is an apocalyptic number.

It is an amenable number.

168022957 is a deficient number, since it is larger than the sum of its proper divisors (4622177).

168022957 is an frugal number, since it uses more digits than its factorization.

168022957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4299 (or 2168 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 168022957 is about 12962.3669520655. The cubic root of 168022957 is about 551.8099677118.

The spelling of 168022957 in words is "one hundred sixty-eight million, twenty-two thousand, nine hundred fifty-seven".