169354985 has 16 divisors (see below), whose sum is σ = 206219520. Its totient is φ = 133499520.

The previous prime is 169354937. The next prime is 169354993. The reversal of 169354985 is 589453961.

It is a happy number.

It is not a de Polignac number, because 169354985 - 2²⁶ = 102246121 is a prime.

It is a super-2 number, since 2×169354985² = 57362221888700450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191354 + ... + 192236.

It is an arithmetic number, because the mean of its divisors is an integer number (12888720).

Almost surely, 2^169354985 is an apocalyptic number.

It is an amenable number.

169354985 is a deficient number, since it is larger than the sum of its proper divisors (36864535).

169354985 is an equidigital number, since it uses as much as digits as its factorization.

169354985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408.

The product of its digits is 1166400, while the sum is 50.

The square root of 169354985 is about 13013.6461070678. The cubic root of 169354985 is about 553.2643175724.

The spelling of 169354985 in words is "one hundred sixty-nine million, three hundred fifty-four thousand, nine hundred eighty-five".