134909429 has 2 divisors, whose sum is σ = 134909430. Its totient is φ = 134909428.

The previous prime is 134909407. The next prime is 134909431. The reversal of 134909429 is 924909431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88642225 + 46267204 = 9415^2 + 6802^2 .

It is a cyclic number.

It is not a de Polignac number, because 134909429 - 2¹² = 134905333 is a prime.

Together with 134909431, 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 (134909449) 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, 67454714 + 67454715.

It is an arithmetic number, because the mean of its divisors is an integer number (67454715).

Almost surely, 2^134909429 is an apocalyptic number.

It is an amenable number.

134909429 is a deficient number, since it is larger than the sum of its proper divisors (1).

134909429 is an equidigital number, since it uses as much as digits as its factorization.

134909429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 134909429 is about 11615.0518294151. The cubic root of 134909429 is about 512.8780366851.

The spelling of 134909429 in words is "one hundred thirty-four million, nine hundred nine thousand, four hundred twenty-nine".