29112081 has 8 divisors (see below), whose sum is σ = 39865344. Its totient is φ = 18883440.

The previous prime is 29112049. The next prime is 29112107. The reversal of 29112081 is 18021192.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 29112081 - 2⁵ = 29112049 is a prime.

It is a super-2 number, since 2×29112081² = 1695026520301122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (29112011) 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, 131025 + ... + 131246.

It is an arithmetic number, because the mean of its divisors is an integer number (4983168).

Almost surely, 2^29112081 is an apocalyptic number.

It is an amenable number.

29112081 is a deficient number, since it is larger than the sum of its proper divisors (10753263).

29112081 is a wasteful number, since it uses less digits than its factorization.

29112081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262311.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 29112081 is about 5395.5612312344. The cubic root of 29112081 is about 307.6269764451.

The spelling of 29112081 in words is "twenty-nine million, one hundred twelve thousand, eighty-one".