169158136 has 32 divisors (see below), whose sum is σ = 366013440. Its totient is φ = 71790048.

The previous prime is 169158113. The next prime is 169158137. The reversal of 169158136 is 631851961.

It is a super-2 number, since 2×169158136² = 57228949949988992, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169158137) 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 7 ways as a sum of consecutive naturals, for example, 8896 + ... + 20431.

It is an arithmetic number, because the mean of its divisors is an integer number (11437920).

Almost surely, 2^169158136 is an apocalyptic number.

It is an amenable number.

169158136 is an abundant number, since it is smaller than the sum of its proper divisors (196855304).

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

169158136 is a wasteful number, since it uses less digits than its factorization.

169158136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29443 (or 29439 counting only the distinct ones).

The product of its digits is 38880, while the sum is 40.

The square root of 169158136 is about 13006.0807317193. The cubic root of 169158136 is about 553.0498730399.

The spelling of 169158136 in words is "one hundred sixty-nine million, one hundred fifty-eight thousand, one hundred thirty-six".