169012506 has 24 divisors (see below), whose sum is σ = 366029280. Its totient is φ = 52003536.

The previous prime is 169012499. The next prime is 169012507. The reversal of 169012506 is 605210961.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (169012507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82326 + ... + 84353.

It is an arithmetic number, because the mean of its divisors is an integer number (15251220).

Almost surely, 2^169012506 is an apocalyptic number.

169012506 is an abundant number, since it is smaller than the sum of its proper divisors (197016774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

169012506 is a wasteful number, since it uses less digits than its factorization.

169012506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166710 (or 166697 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 169012506 is about 13000.4809911018. The cubic root of 169012506 is about 552.8911186760.

It can be divided in two parts, 1690 and 12506, that added together give a triangular number (14196 = T₁₆₈).

The spelling of 169012506 in words is "one hundred sixty-nine million, twelve thousand, five hundred six".