29299139 has 4 divisors (see below), whose sum is σ = 29310000. Its totient is φ = 29288280.

The previous prime is 29299129. The next prime is 29299147. The reversal of 29299139 is 93199292.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29299139 is a prime.

It is a super-2 number, since 2×29299139² = 1716879092282642, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 29299139.

It is not an unprimeable number, because it can be changed into a prime (29299129) 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, 2069 + ... + 7929.

It is an arithmetic number, because the mean of its divisors is an integer number (7327500).

Almost surely, 2^29299139 is an apocalyptic number.

29299139 is a deficient number, since it is larger than the sum of its proper divisors (10861).

29299139 is an equidigital number, since it uses as much as digits as its factorization.

29299139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10860.

The product of its digits is 78732, while the sum is 44.

The square root of 29299139 is about 5412.8679089739. The cubic root of 29299139 is about 308.2844500704.

The spelling of 29299139 in words is "twenty-nine million, two hundred ninety-nine thousand, one hundred thirty-nine".