169308090 has 128 divisors (see below), whose sum is σ = 533952000. Its totient is φ = 37352448.

The previous prime is 169308077. The next prime is 169308103. The reversal of 169308090 is 90803961.

It is an interprime number because it is at equal distance from previous prime (169308077) and next prime (169308103).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 53266 + ... + 56354.

It is an arithmetic number, because the mean of its divisors is an integer number (4171500).

Almost surely, 2^169308090 is an apocalyptic number.

169308090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 169308090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266976000).

169308090 is an abundant number, since it is smaller than the sum of its proper divisors (364643910).

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

169308090 is a wasteful number, since it uses less digits than its factorization.

169308090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3141 (or 3135 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 169308090 is about 13011.8442197868. The cubic root of 169308090 is about 553.2132459032.

The spelling of 169308090 in words is "one hundred sixty-nine million, three hundred eight thousand, ninety".