134646779 has 2 divisors, whose sum is σ = 134646780. Its totient is φ = 134646778.

The previous prime is 134646773. The next prime is 134646839. The reversal of 134646779 is 977646431.

It is a happy number.

134646779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 134646779 - 2¹⁶ = 134581243 is a prime.

It is a super-3 number, since 3×134646779³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (134646773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67323389 + 67323390.

It is an arithmetic number, because the mean of its divisors is an integer number (67323390).

Almost surely, 2^134646779 is an apocalyptic number.

134646779 is a deficient number, since it is larger than the sum of its proper divisors (1).

134646779 is an equidigital number, since it uses as much as digits as its factorization.

134646779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 762048, while the sum is 47.

The square root of 134646779 is about 11603.7398712656. The cubic root of 134646779 is about 512.5449862553.

The spelling of 134646779 in words is "one hundred thirty-four million, six hundred forty-six thousand, seven hundred seventy-nine".