136133777 has 16 divisors (see below), whose sum is σ = 149904720. Its totient is φ = 122867712.

The previous prime is 136133771. The next prime is 136133779. The reversal of 136133777 is 777331631.

It can be written as a sum of positive squares in 8 ways, for example, as 53523856 + 82609921 = 7316^2 + 9089^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136133777 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 136133777.

It is not an unprimeable number, because it can be changed into a prime (136133771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111623 + ... + 112835.

It is an arithmetic number, because the mean of its divisors is an integer number (9369045).

Almost surely, 2^136133777 is an apocalyptic number.

It is an amenable number.

136133777 is a deficient number, since it is larger than the sum of its proper divisors (13770943).

136133777 is a wasteful number, since it uses less digits than its factorization.

136133777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412.

The product of its digits is 55566, while the sum is 38.

The square root of 136133777 is about 11667.6380214678. The cubic root of 136133777 is about 514.4248797070.

The spelling of 136133777 in words is "one hundred thirty-six million, one hundred thirty-three thousand, seven hundred seventy-seven".