29121071 has 8 divisors (see below), whose sum is σ = 33335424. Its totient is φ = 24920280.

The previous prime is 29121047. The next prime is 29121077. The reversal of 29121071 is 17012192.

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

It is not a de Polignac number, because 29121071 - 2¹⁴ = 29104687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29121077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1736 + ... + 7826.

It is an arithmetic number, because the mean of its divisors is an integer number (4166928).

Almost surely, 2^29121071 is an apocalyptic number.

29121071 is a deficient number, since it is larger than the sum of its proper divisors (4214353).

29121071 is an equidigital number, since it uses as much as digits as its factorization.

29121071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6781.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 29121071 is about 5396.3942591327. The cubic root of 29121071 is about 307.6586389234.

The spelling of 29121071 in words is "twenty-nine million, one hundred twenty-one thousand, seventy-one".