29801129 has 4 divisors (see below), whose sum is σ = 29818884. Its totient is φ = 29783376.

The previous prime is 29801111. The next prime is 29801141. The reversal of 29801129 is 92110892.

It is a happy number.

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 26543104 + 3258025 = 5152^2 + 1805^2 .

It is a cyclic number.

It is not a de Polignac number, because 29801129 - 2¹⁶ = 29735593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29801095 and 29801104.

It is not an unprimeable number, because it can be changed into a prime (29801159) 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, 6062 + ... + 9815.

It is an arithmetic number, because the mean of its divisors is an integer number (7454721).

Almost surely, 2^29801129 is an apocalyptic number.

It is an amenable number.

29801129 is a deficient number, since it is larger than the sum of its proper divisors (17755).

29801129 is a wasteful number, since it uses less digits than its factorization.

29801129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17754.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 29801129 is about 5459.0410330020. The cubic root of 29801129 is about 310.0351295604.

The spelling of 29801129 in words is "twenty-nine million, eight hundred one thousand, one hundred twenty-nine".