136783648 has 12 divisors (see below), whose sum is σ = 269292870. Its totient is φ = 68391808.

The previous prime is 136783643. The next prime is 136783663. The reversal of 136783648 is 846387631.

It can be written as a sum of positive squares in only one way, i.e., 132066064 + 4717584 = 11492^2 + 2172^2 .

It is a junction number, because it is equal to n+sod(n) for n = 136783598 and 136783607.

It is not an unprimeable number, because it can be changed into a prime (136783643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2137213 + ... + 2137276.

Almost surely, 2^136783648 is an apocalyptic number.

It is an amenable number.

136783648 is a deficient number, since it is larger than the sum of its proper divisors (132509222).

136783648 is an equidigital number, since it uses as much as digits as its factorization.

136783648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4274499 (or 4274491 counting only the distinct ones).

The product of its digits is 580608, while the sum is 46.

The square root of 136783648 is about 11695.4541596297. The cubic root of 136783648 is about 515.2421621681.

The spelling of 136783648 in words is "one hundred thirty-six million, seven hundred eighty-three thousand, six hundred forty-eight".