169109801 has 4 divisors (see below), whose sum is σ = 193268352. Its totient is φ = 144951252.

The previous prime is 169109783. The next prime is 169109813. The reversal of 169109801 is 108901961.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 169109801 - 2⁶ = 169109737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (169109821) 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 3 ways as a sum of consecutive naturals, for example, 12079265 + ... + 12079278.

It is an arithmetic number, because the mean of its divisors is an integer number (48317088).

Almost surely, 2^169109801 is an apocalyptic number.

It is an amenable number.

169109801 is a deficient number, since it is larger than the sum of its proper divisors (24158551).

169109801 is an equidigital number, since it uses as much as digits as its factorization.

169109801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24158550.

The product of its (nonzero) digits is 3888, while the sum is 35.

The square root of 169109801 is about 13004.2224296572. Note that the first 3 decimals coincide. The cubic root of 169109801 is about 552.9971921329.

The spelling of 169109801 in words is "one hundred sixty-nine million, one hundred nine thousand, eight hundred one".