29311139 has 8 divisors (see below), whose sum is σ = 34435632. Its totient is φ = 24596640.

The previous prime is 29311097. The next prime is 29311147. The reversal of 29311139 is 93111392.

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

It is a cyclic number.

It is not a de Polignac number, because 29311139 - 2¹² = 29307043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29311739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102344 + ... + 102629.

It is an arithmetic number, because the mean of its divisors is an integer number (4304454).

Almost surely, 2^29311139 is an apocalyptic number.

29311139 is a deficient number, since it is larger than the sum of its proper divisors (5124493).

29311139 is a wasteful number, since it uses less digits than its factorization.

29311139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204997.

The product of its digits is 1458, while the sum is 29.

The square root of 29311139 is about 5413.9762651862. The cubic root of 29311139 is about 308.3265321769.

The spelling of 29311139 in words is "twenty-nine million, three hundred eleven thousand, one hundred thirty-nine".