136710779 has 2 divisors, whose sum is σ = 136710780. Its totient is φ = 136710778.

The previous prime is 136710773. The next prime is 136710799. The reversal of 136710779 is 977017631.

It is a weak prime.

It is an emirp because it is prime and its reverse (977017631) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136710779 is a prime.

It is not a weakly prime, because it can be changed into another prime (136710773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68355389 + 68355390.

It is an arithmetic number, because the mean of its divisors is an integer number (68355390).

Almost surely, 2^136710779 is an apocalyptic number.

136710779 is a deficient number, since it is larger than the sum of its proper divisors (1).

136710779 is an equidigital number, since it uses as much as digits as its factorization.

136710779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55566, while the sum is 41.

The square root of 136710779 is about 11692.3384744028. The cubic root of 136710779 is about 515.1506506197.

The spelling of 136710779 in words is "one hundred thirty-six million, seven hundred ten thousand, seven hundred seventy-nine".