169109027 has 2 divisors, whose sum is σ = 169109028. Its totient is φ = 169109026.

The previous prime is 169109011. The next prime is 169109071. The reversal of 169109027 is 720901961.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 169109027 - 2⁴ = 169109011 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (169109627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84554513 + 84554514.

It is an arithmetic number, because the mean of its divisors is an integer number (84554514).

Almost surely, 2^169109027 is an apocalyptic number.

169109027 is a deficient number, since it is larger than the sum of its proper divisors (1).

169109027 is an equidigital number, since it uses as much as digits as its factorization.

169109027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 169109027 is about 13004.1926700584. The cubic root of 169109027 is about 552.9963484592.

The spelling of 169109027 in words is "one hundred sixty-nine million, one hundred nine thousand, twenty-seven".