169156 has 12 divisors (see below), whose sum is σ = 318892. Its totient is φ = 78048.

The previous prime is 169151. The next prime is 169159. The reversal of 169156 is 651961.

It can be written as a sum of positive squares in 2 ways, for example, as 111556 + 57600 = 334^2 + 240^2 .

It is a super-2 number, since 2×169156² = 57227504672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (169151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1575 + ... + 1678.

2¹⁶⁹¹⁵⁶ is an apocalyptic number.

It is an amenable number.

169156 is a deficient number, since it is larger than the sum of its proper divisors (149736).

169156 is a wasteful number, since it uses less digits than its factorization.

169156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3270 (or 3268 counting only the distinct ones).

The product of its digits is 1620, while the sum is 28.

The square root of 169156 is about 411.2857887163. The cubic root of 169156 is about 55.3047545199.

It can be divided in two parts, 169 and 156, that added together give a triangular number (325 = T₂₅).

The spelling of 169156 in words is "one hundred sixty-nine thousand, one hundred fifty-six".