169113913 has 2 divisors, whose sum is σ = 169113914. Its totient is φ = 169113912.

The previous prime is 169113881. The next prime is 169113929. The reversal of 169113913 is 319311961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 153958464 + 15155449 = 12408^2 + 3893^2 .

It is a cyclic number.

It is not a de Polignac number, because 169113913 - 2⁵ = 169113881 is a prime.

It is not a weakly prime, because it can be changed into another prime (169113953) 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, 84556956 + 84556957.

It is an arithmetic number, because the mean of its divisors is an integer number (84556957).

Almost surely, 2^169113913 is an apocalyptic number.

It is an amenable number.

169113913 is a deficient number, since it is larger than the sum of its proper divisors (1).

169113913 is an equidigital number, since it uses as much as digits as its factorization.

169113913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4374, while the sum is 34.

The square root of 169113913 is about 13004.3805311902. The cubic root of 169113913 is about 553.0016742426.

The spelling of 169113913 in words is "one hundred sixty-nine million, one hundred thirteen thousand, nine hundred thirteen".