29081 has 4 divisors (see below), whose sum is σ = 31332. Its totient is φ = 26832.

The previous prime is 29077. The next prime is 29101. The reversal of 29081 is 18092.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13456 + 15625 = 116^2 + 125^2 .

It is not a de Polignac number, because 29081 - 2² = 29077 is a prime.

It is a super-2 number, since 2×29081² = 1691409122, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 29081.

It is not an unprimeable number, because it can be changed into a prime (29021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1106 + ... + 1131.

It is an arithmetic number, because the mean of its divisors is an integer number (7833).

2²⁹⁰⁸¹ is an apocalyptic number.

It is an amenable number.

29081 is a deficient number, since it is larger than the sum of its proper divisors (2251).

29081 is a wasteful number, since it uses less digits than its factorization.

29081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 29081 is about 170.5315220128. The cubic root of 29081 is about 30.7517459956.

The spelling of 29081 in words is "twenty-nine thousand, eighty-one".