29505139 has 2 divisors, whose sum is σ = 29505140. Its totient is φ = 29505138.

The previous prime is 29505131. The next prime is 29505187. The reversal of 29505139 is 93150592.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 29505139 - 2³ = 29505131 is a prime.

It is not a weakly prime, because it can be changed into another prime (29505131) 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 as a sum of consecutive naturals, namely, 14752569 + 14752570.

It is an arithmetic number, because the mean of its divisors is an integer number (14752570).

Almost surely, 2^29505139 is an apocalyptic number.

29505139 is a deficient number, since it is larger than the sum of its proper divisors (1).

29505139 is an equidigital number, since it uses as much as digits as its factorization.

29505139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 29505139 is about 5431.8633082949. The cubic root of 29505139 is about 309.0052714650.

The spelling of 29505139 in words is "twenty-nine million, five hundred five thousand, one hundred thirty-nine".