168449111 has 2 divisors, whose sum is σ = 168449112. Its totient is φ = 168449110.

The previous prime is 168449077. The next prime is 168449147. The reversal of 168449111 is 111944861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 168449111 - 2¹⁴ = 168432727 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168449161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84224555 + 84224556.

It is an arithmetic number, because the mean of its divisors is an integer number (84224556).

Almost surely, 2^168449111 is an apocalyptic number.

168449111 is a deficient number, since it is larger than the sum of its proper divisors (1).

168449111 is an equidigital number, since it uses as much as digits as its factorization.

168449111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 35.

The square root of 168449111 is about 12978.7946666861. The cubic root of 168449111 is about 552.2760895269.

The spelling of 168449111 in words is "one hundred sixty-eight million, four hundred forty-nine thousand, one hundred eleven".