134217779 has 2 divisors, whose sum is σ = 134217780. Its totient is φ = 134217778.

The previous prime is 134217773. The next prime is 134217781. The reversal of 134217779 is 977712431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 134217779 - 2¹² = 134213683 is a prime.

Together with 134217781, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (134217773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67108889 + 67108890.

It is an arithmetic number, because the mean of its divisors is an integer number (67108890).

Almost surely, 2^134217779 is an apocalyptic number.

134217779 is a deficient number, since it is larger than the sum of its proper divisors (1).

134217779 is an equidigital number, since it uses as much as digits as its factorization.

134217779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 74088, while the sum is 41.

The square root of 134217779 is about 11585.2397040372. The cubic root of 134217779 is about 512.0000648498. Note that the first 4 decimals are identical.

The spelling of 134217779 in words is "one hundred thirty-four million, two hundred seventeen thousand, seven hundred seventy-nine".