29161 has 6 divisors (see below), whose sum is σ = 32186. Its totient is φ = 26400.

The previous prime is 29153. The next prime is 29167. The reversal of 29161 is 16192.

29161 is a nontrivial binomial coefficient, being equal to C(242, 2).

It can be written as a sum of positive squares in only one way, i.e., 27225 + 1936 = 165^2 + 44^2 .

It is not a de Polignac number, because 29161 - 2³ = 29153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29167) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1 + ... + 241.

2²⁹¹⁶¹ is an apocalyptic number.

29161 is the 241-st triangular number and also the 121-st hexagonal number.

29161 is the 81-st centered nonagonal number.

It is an amenable number.

29161 is a deficient number, since it is larger than the sum of its proper divisors (3025).

29161 is a wasteful number, since it uses less digits than its factorization.

29161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263 (or 252 counting only the distinct ones).

The product of its digits is 108, while the sum is 19.

The square root of 29161 is about 170.7659216589. The cubic root of 29161 is about 30.7799188831.

It can be divided in two parts, 29 and 161, that added together give a triangular number (190 = T₁₉).

The spelling of 29161 in words is "twenty-nine thousand, one hundred sixty-one".