169081 has 8 divisors (see below), whose sum is σ = 194400. Its totient is φ = 145440.

The previous prime is 169079. The next prime is 169093. The reversal of 169081 is 180961.

169081 = T₃₆ + T₃₇ + ... + T₁₀₁.

169081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 169081 - 2¹ = 169079 is a prime.

It is a super-2 number, since 2×169081² = 57176769122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (169181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196 + ... + 613.

It is an arithmetic number, because the mean of its divisors is an integer number (24300).

2¹⁶⁹⁰⁸¹ is an apocalyptic number.

169081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

169081 is a deficient number, since it is larger than the sum of its proper divisors (25319).

169081 is a wasteful number, since it uses less digits than its factorization.

169081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 169081 is about 411.1946011319. The cubic root of 169081 is about 55.2965796798.

It can be divided in two parts, 1690 and 81, that added together give a palindrome (1771).

The spelling of 169081 in words is "one hundred sixty-nine thousand, eighty-one".