29143172 has 12 divisors (see below), whose sum is σ = 51283596. Its totient is φ = 14490720.

The previous prime is 29143159. The next prime is 29143181. The reversal of 29143172 is 27134192.

It can be written as a sum of positive squares in 2 ways, for example, as 10601536 + 18541636 = 3256^2 + 4306^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19403 + ... + 20850.

It is an arithmetic number, because the mean of its divisors is an integer number (4273633).

Almost surely, 2^29143172 is an apocalyptic number.

It is an amenable number.

29143172 is a deficient number, since it is larger than the sum of its proper divisors (22140424).

29143172 is a wasteful number, since it uses less digits than its factorization.

29143172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40438 (or 40436 counting only the distinct ones).

The product of its digits is 3024, while the sum is 29.

The square root of 29143172 is about 5398.4416269883. The cubic root of 29143172 is about 307.7364502117.

The spelling of 29143172 in words is "twenty-nine million, one hundred forty-three thousand, one hundred seventy-two".