29228143 has 8 divisors (see below), whose sum is σ = 34555680. Its totient is φ = 24188640.

The previous prime is 29228141. The next prime is 29228179. The reversal of 29228143 is 34182292.

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

It is not a de Polignac number, because 29228143 - 2¹ = 29228141 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 (29228141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71788 + ... + 72193.

It is an arithmetic number, because the mean of its divisors is an integer number (4319460).

Almost surely, 2^29228143 is an apocalyptic number.

29228143 is a deficient number, since it is larger than the sum of its proper divisors (5327537).

29228143 is a wasteful number, since it uses less digits than its factorization.

29228143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144017.

The product of its digits is 6912, while the sum is 31.

The square root of 29228143 is about 5406.3058552028. The cubic root of 29228143 is about 308.0352429172.

The spelling of 29228143 in words is "twenty-nine million, two hundred twenty-eight thousand, one hundred forty-three".