169201020 has 24 divisors (see below), whose sum is σ = 473763024. Its totient is φ = 45120256.

The previous prime is 169201013. The next prime is 169201031. The reversal of 169201020 is 20102961.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1409949 + ... + 1410068.

It is an arithmetic number, because the mean of its divisors is an integer number (19740126).

Almost surely, 2^169201020 is an apocalyptic number.

169201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

169201020 is an abundant number, since it is smaller than the sum of its proper divisors (304562004).

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

169201020 is a wasteful number, since it uses less digits than its factorization.

169201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2820029 (or 2820027 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 169201020 is about 13007.7292407245. The cubic root of 169201020 is about 553.0966044346.

Adding to 169201020 its reverse (20102961), we get a palindrome (189303981).

The spelling of 169201020 in words is "one hundred sixty-nine million, two hundred one thousand, twenty".