169121327 has 2 divisors, whose sum is σ = 169121328. Its totient is φ = 169121326.

The previous prime is 169121297. The next prime is 169121371. The reversal of 169121327 is 723121961.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 169121327 - 2¹⁸ = 168859183 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 169121293 and 169121302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (169124327) 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, 84560663 + 84560664.

It is an arithmetic number, because the mean of its divisors is an integer number (84560664).

Almost surely, 2^169121327 is an apocalyptic number.

169121327 is a deficient number, since it is larger than the sum of its proper divisors (1).

169121327 is an equidigital number, since it uses as much as digits as its factorization.

169121327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 32.

The square root of 169121327 is about 13004.6655858580. The cubic root of 169121327 is about 553.0097553725.

The spelling of 169121327 in words is "one hundred sixty-nine million, one hundred twenty-one thousand, three hundred twenty-seven".