136785753 has 20 divisors (see below), whose sum is σ = 220053988. Its totient is φ = 84175200.

The previous prime is 136785749. The next prime is 136785763. The reversal of 136785753 is 357587631.

136785753 is a `hidden beast` number, since 1 + 3 + 6 + 78 + 575 + 3 = 666.

136785753 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 60886809 + 75898944 = 7803^2 + 8712^2 .

It is not a de Polignac number, because 136785753 - 2² = 136785749 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136785699 and 136785708.

It is not an unprimeable number, because it can be changed into a prime (136785763) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 63898 + ... + 66003.

Almost surely, 2^136785753 is an apocalyptic number.

136785753 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

136785753 is a deficient number, since it is larger than the sum of its proper divisors (83268235).

136785753 is a wasteful number, since it uses less digits than its factorization.

136785753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129926 (or 129917 counting only the distinct ones).

The product of its digits is 529200, while the sum is 45.

The square root of 136785753 is about 11695.5441515134. The cubic root of 136785753 is about 515.2448052209.

The spelling of 136785753 in words is "one hundred thirty-six million, seven hundred eighty-five thousand, seven hundred fifty-three".