169913 has 2 divisors, whose sum is σ = 169914. Its totient is φ = 169912.

The previous prime is 169909. The next prime is 169919. The reversal of 169913 is 319961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 169744 + 169 = 412^2 + 13^2 .

It is a cyclic number.

It is not a de Polignac number, because 169913 - 2² = 169909 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (169919) 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, 84956 + 84957.

It is an arithmetic number, because the mean of its divisors is an integer number (84957).

2¹⁶⁹⁹¹³ is an apocalyptic number.

It is an amenable number.

169913 is a deficient number, since it is larger than the sum of its proper divisors (1).

169913 is an equidigital number, since it uses as much as digits as its factorization.

169913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1458, while the sum is 29.

The square root of 169913 is about 412.2050460632. The cubic root of 169913 is about 55.3871309498.

The spelling of 169913 in words is "one hundred sixty-nine thousand, nine hundred thirteen".