168949117 has 2 divisors, whose sum is σ = 168949118. Its totient is φ = 168949116.

The previous prime is 168949103. The next prime is 168949127. The reversal of 168949117 is 711949861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133772356 + 35176761 = 11566^2 + 5931^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168949117 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168949127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84474558 + 84474559.

It is an arithmetic number, because the mean of its divisors is an integer number (84474559).

Almost surely, 2^168949117 is an apocalyptic number.

It is an amenable number.

168949117 is a deficient number, since it is larger than the sum of its proper divisors (1).

168949117 is an equidigital number, since it uses as much as digits as its factorization.

168949117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 46.

The square root of 168949117 is about 12998.0428142086. The cubic root of 168949117 is about 552.8219884907.

The spelling of 168949117 in words is "one hundred sixty-eight million, nine hundred forty-nine thousand, one hundred seventeen".