168648093 has 12 divisors (see below), whose sum is σ = 245760060. Its totient is φ = 111436416.

The previous prime is 168648089. The next prime is 168648097. The reversal of 168648093 is 390846861.

168648093 is a `hidden beast` number, since 1 + 6 + 86 + 480 + 93 = 666.

It is an interprime number because it is at equal distance from previous prime (168648089) and next prime (168648097).

It can be written as a sum of positive squares in 2 ways, for example, as 68608089 + 100040004 = 8283^2 + 10002^2 .

It is not a de Polignac number, because 168648093 - 2² = 168648089 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168648097) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81898 + ... + 83931.

It is an arithmetic number, because the mean of its divisors is an integer number (20480005).

Almost surely, 2^168648093 is an apocalyptic number.

It is an amenable number.

168648093 is a deficient number, since it is larger than the sum of its proper divisors (77111967).

168648093 is a wasteful number, since it uses less digits than its factorization.

168648093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165948 (or 165945 counting only the distinct ones).

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

The square root of 168648093 is about 12986.4580621507. The cubic root of 168648093 is about 552.4934642935.

The spelling of 168648093 in words is "one hundred sixty-eight million, six hundred forty-eight thousand, ninety-three".