169085161 has 8 divisors (see below), whose sum is σ = 203410880. Its totient is φ = 137302128.

The previous prime is 169085149. The next prime is 169085173. The reversal of 169085161 is 161580961.

It is an interprime number because it is at equal distance from previous prime (169085149) and next prime (169085173).

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 169085161 - 2⁹ = 169084649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 169085161.

It is not an unprimeable number, because it can be changed into a prime (169085101) 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, 635526 + ... + 635791.

It is an arithmetic number, because the mean of its divisors is an integer number (25426360).

Almost surely, 2^169085161 is an apocalyptic number.

It is an amenable number.

169085161 is a deficient number, since it is larger than the sum of its proper divisors (34325719).

169085161 is a wasteful number, since it uses less digits than its factorization.

169085161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271343.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 169085161 is about 13003.2750105502. The cubic root of 169085161 is about 552.9703328329.

The spelling of 169085161 in words is "one hundred sixty-nine million, eighty-five thousand, one hundred sixty-one".