169030985 has 16 divisors (see below), whose sum is σ = 208837056. Its totient is φ = 131243328.

The previous prime is 169030969. The next prime is 169030993. The reversal of 169030985 is 589030961.

It is a cyclic number.

It is not a de Polignac number, because 169030985 - 2⁴ = 169030969 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

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, 95882 + ... + 97628.

It is an arithmetic number, because the mean of its divisors is an integer number (13052316).

Almost surely, 2^169030985 is an apocalyptic number.

It is an amenable number.

169030985 is a deficient number, since it is larger than the sum of its proper divisors (39806071).

169030985 is a wasteful number, since it uses less digits than its factorization.

169030985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2312.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 169030985 is about 13001.1916761503. The cubic root of 169030985 is about 552.9112680778.

The spelling of 169030985 in words is "one hundred sixty-nine million, thirty thousand, nine hundred eighty-five".