134968777 has 2 divisors, whose sum is σ = 134968778. Its totient is φ = 134968776.

The previous prime is 134968759. The next prime is 134968781. The reversal of 134968777 is 777869431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112869376 + 22099401 = 10624^2 + 4701^2 .

It is an emirp because it is prime and its reverse (777869431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134968777 - 2¹¹ = 134966729 is a prime.

It is not a weakly prime, because it can be changed into another prime (134968177) 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, 67484388 + 67484389.

It is an arithmetic number, because the mean of its divisors is an integer number (67484389).

Almost surely, 2^134968777 is an apocalyptic number.

It is an amenable number.

134968777 is a deficient number, since it is larger than the sum of its proper divisors (1).

134968777 is an equidigital number, since it uses as much as digits as its factorization.

134968777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1778112, while the sum is 52.

The square root of 134968777 is about 11617.6063369353. The cubic root of 134968777 is about 512.9532323766.

The spelling of 134968777 in words is "one hundred thirty-four million, nine hundred sixty-eight thousand, seven hundred seventy-seven".