29149643 has 4 divisors (see below), whose sum is σ = 29627568. Its totient is φ = 28671720.

The previous prime is 29149633. The next prime is 29149663. The reversal of 29149643 is 34694192.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 29149643 - 2⁸ = 29149387 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29149597 and 29149606.

It is not an unprimeable number, because it can be changed into a prime (29149633) 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, 238871 + ... + 238992.

It is an arithmetic number, because the mean of its divisors is an integer number (7406892).

Almost surely, 2^29149643 is an apocalyptic number.

29149643 is a deficient number, since it is larger than the sum of its proper divisors (477925).

29149643 is an equidigital number, since it uses as much as digits as its factorization.

29149643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477924.

The product of its digits is 46656, while the sum is 38.

The square root of 29149643 is about 5399.0409333510. The cubic root of 29149643 is about 307.7592253029.

It can be divided in two parts, 29149 and 643, that added together give a palindrome (29792).

The spelling of 29149643 in words is "twenty-nine million, one hundred forty-nine thousand, six hundred forty-three".