29123117 has 2 divisors, whose sum is σ = 29123118. Its totient is φ = 29123116.

The previous prime is 29123111. The next prime is 29123119. The reversal of 29123117 is 71132192.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29041321 + 81796 = 5389^2 + 286^2 .

It is a cyclic number.

It is not a de Polignac number, because 29123117 - 2⁸ = 29122861 is a prime.

Together with 29123119, 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 (29123111) 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, 14561558 + 14561559.

It is an arithmetic number, because the mean of its divisors is an integer number (14561559).

Almost surely, 2^29123117 is an apocalyptic number.

It is an amenable number.

29123117 is a deficient number, since it is larger than the sum of its proper divisors (1).

29123117 is an equidigital number, since it uses as much as digits as its factorization.

29123117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 756, while the sum is 26.

The square root of 29123117 is about 5396.5838268297. The cubic root of 29123117 is about 307.6658439564.

The spelling of 29123117 in words is "twenty-nine million, one hundred twenty-three thousand, one hundred seventeen".