169793109 has 12 divisors (see below), whose sum is σ = 248617356. Its totient is φ = 111644352.

The previous prime is 169793083. The next prime is 169793123. The reversal of 169793109 is 901397961.

It can be written as a sum of positive squares in 2 ways, for example, as 136960209 + 32832900 = 11703^2 + 5730^2 .

It is not a de Polignac number, because 169793109 - 2⁷ = 169792981 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169793159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 128562 + ... + 129875.

It is an arithmetic number, because the mean of its divisors is an integer number (20718113).

Almost surely, 2^169793109 is an apocalyptic number.

It is an amenable number.

169793109 is a deficient number, since it is larger than the sum of its proper divisors (78824247).

169793109 is a wasteful number, since it uses less digits than its factorization.

169793109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258516 (or 258513 counting only the distinct ones).

The product of its (nonzero) digits is 91854, while the sum is 45.

The square root of 169793109 is about 13030.4684873569. The cubic root of 169793109 is about 553.7410078931.

The spelling of 169793109 in words is "one hundred sixty-nine million, seven hundred ninety-three thousand, one hundred nine".