29071109 has 2 divisors, whose sum is σ = 29071110. Its totient is φ = 29071108.

The previous prime is 29071073. The next prime is 29071111. The reversal of 29071109 is 90117092.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28922884 + 148225 = 5378^2 + 385^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29071109 is a prime.

Together with 29071111, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (29071169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14535554 + 14535555.

It is an arithmetic number, because the mean of its divisors is an integer number (14535555).

Almost surely, 2^29071109 is an apocalyptic number.

It is an amenable number.

29071109 is a deficient number, since it is larger than the sum of its proper divisors (1).

29071109 is an equidigital number, since it uses as much as digits as its factorization.

29071109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 29.

The square root of 29071109 is about 5391.7630697203. The cubic root of 29071109 is about 307.4825918274.

The spelling of 29071109 in words is "twenty-nine million, seventy-one thousand, one hundred nine".