168611087 has 2 divisors, whose sum is σ = 168611088. Its totient is φ = 168611086.

The previous prime is 168611059. The next prime is 168611089. The reversal of 168611087 is 780116861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 168611087 - 2²² = 164416783 is a prime.

Together with 168611089, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 168611087.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168611089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84305543 + 84305544.

It is an arithmetic number, because the mean of its divisors is an integer number (84305544).

Almost surely, 2^168611087 is an apocalyptic number.

168611087 is a deficient number, since it is larger than the sum of its proper divisors (1).

168611087 is an equidigital number, since it uses as much as digits as its factorization.

168611087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 38.

The square root of 168611087 is about 12985.0331921024. The cubic root of 168611087 is about 552.4530506163.

The spelling of 168611087 in words is "one hundred sixty-eight million, six hundred eleven thousand, eighty-seven".