169108645 has 16 divisors (see below), whose sum is σ = 214246080. Its totient is φ = 128140560.

The previous prime is 169108619. The next prime is 169108649. The reversal of 169108645 is 546801961.

It is not a de Polignac number, because 169108645 - 2⁵ = 169108613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 169108598 and 169108607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169108649) 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 in 15 ways as a sum of consecutive naturals, for example, 31830 + ... + 36760.

It is an arithmetic number, because the mean of its divisors is an integer number (13390380).

Almost surely, 2^169108645 is an apocalyptic number.

It is an amenable number.

169108645 is a deficient number, since it is larger than the sum of its proper divisors (45137435).

169108645 is an frugal number, since it uses more digits than its factorization.

169108645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4993 (or 4955 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 169108645 is about 13004.1779824793. The cubic root of 169108645 is about 552.9959320715.

The spelling of 169108645 in words is "one hundred sixty-nine million, one hundred eight thousand, six hundred forty-five".