29710139 has 2 divisors, whose sum is σ = 29710140. Its totient is φ = 29710138.

The previous prime is 29710127. The next prime is 29710147. The reversal of 29710139 is 93101792.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 29710139 - 2¹² = 29706043 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (29710039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14855069 + 14855070.

It is an arithmetic number, because the mean of its divisors is an integer number (14855070).

Almost surely, 2^29710139 is an apocalyptic number.

29710139 is a deficient number, since it is larger than the sum of its proper divisors (1).

29710139 is an equidigital number, since it uses as much as digits as its factorization.

29710139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 29710139 is about 5450.7007806336. The cubic root of 29710139 is about 309.7192706548.

The spelling of 29710139 in words is "twenty-nine million, seven hundred ten thousand, one hundred thirty-nine".