169113885 has 8 divisors (see below), whose sum is σ = 270582240. Its totient is φ = 90194064.

The previous prime is 169113881. The next prime is 169113913. The reversal of 169113885 is 588311961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 169113885 - 2² = 169113881 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169113881) 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 in 7 ways as a sum of consecutive naturals, for example, 5637115 + ... + 5637144.

It is an arithmetic number, because the mean of its divisors is an integer number (33822780).

Almost surely, 2^169113885 is an apocalyptic number.

169113885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

169113885 is a deficient number, since it is larger than the sum of its proper divisors (101468355).

169113885 is a wasteful number, since it uses less digits than its factorization.

169113885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11274267.

The product of its digits is 51840, while the sum is 42.

The square root of 169113885 is about 13004.3794546299. The cubic root of 169113885 is about 553.0016437226.

It can be divided in two parts, 1691 and 13885, that added together give a triangular number (15576 = T₁₇₆).

The spelling of 169113885 in words is "one hundred sixty-nine million, one hundred thirteen thousand, eight hundred eighty-five".