169085045 has 8 divisors (see below), whose sum is σ = 203157720. Its totient is φ = 135097600.

The previous prime is 169085041. The next prime is 169085053. The reversal of 169085045 is 540580961.

It can be written as a sum of positive squares in 4 ways, for example, as 5193841 + 163891204 = 2279^2 + 12802^2 .

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

It is not a de Polignac number, because 169085045 - 2² = 169085041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169085041) 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, 16856 + ... + 24945.

It is an arithmetic number, because the mean of its divisors is an integer number (25394715).

Almost surely, 2^169085045 is an apocalyptic number.

It is an amenable number.

169085045 is a deficient number, since it is larger than the sum of its proper divisors (34072675).

169085045 is an equidigital number, since it uses as much as digits as its factorization.

169085045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42615.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 169085045 is about 13003.2705501347. The cubic root of 169085045 is about 552.9702063787.

The spelling of 169085045 in words is "one hundred sixty-nine million, eighty-five thousand, forty-five".