169020108 has 72 divisors (see below), whose sum is σ = 446824560. Its totient is φ = 55934712.

The previous prime is 169020097. The next prime is 169020157. The reversal of 169020108 is 801020961.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 23 ways as a sum of consecutive naturals, for example, 1215903 + ... + 1216041.

Almost surely, 2^169020108 is an apocalyptic number.

169020108 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 169020108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223412280).

169020108 is an abundant number, since it is smaller than the sum of its proper divisors (277804452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

169020108 is an frugal number, since it uses more digits than its factorization.

169020108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 169020108 is about 13000.7733616120. The cubic root of 169020108 is about 552.8994080336.

Multiplying 169020108 by its sum of digits (27), we get a square (4563542916 = 67554²).

169020108 divided by its sum of digits (27) gives a square (6260004 = 2502²).

The spelling of 169020108 in words is "one hundred sixty-nine million, twenty thousand, one hundred eight".