169117538 has 16 divisors (see below), whose sum is σ = 265912416. Its totient is φ = 80576160.

The previous prime is 169117519. The next prime is 169117561. The reversal of 169117538 is 835711961.

169117538 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a junction number, because it is equal to n+sod(n) for n = 169117495 and 169117504.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 20456 + ... + 27507.

It is an arithmetic number, because the mean of its divisors is an integer number (16619526).

Almost surely, 2^169117538 is an apocalyptic number.

169117538 is a deficient number, since it is larger than the sum of its proper divisors (96794878).

169117538 is a wasteful number, since it uses less digits than its factorization.

169117538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48049.

The product of its digits is 45360, while the sum is 41.

The square root of 169117538 is about 13004.5199065556. The cubic root of 169117538 is about 553.0056254585.

The spelling of 169117538 in words is "one hundred sixty-nine million, one hundred seventeen thousand, five hundred thirty-eight".