136785699 has 8 divisors (see below), whose sum is σ = 202645520. Its totient is φ = 91190448.

The previous prime is 136785673. The next prime is 136785749. The reversal of 136785699 is 996587631.

136785699 is a `hidden beast` number, since 1 + 3 + 6 + 78 + 569 + 9 = 666.

It is not a de Polignac number, because 136785699 - 2⁸ = 136785443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136785499) 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 in 7 ways as a sum of consecutive naturals, for example, 2533042 + ... + 2533095.

It is an arithmetic number, because the mean of its divisors is an integer number (25330690).

Almost surely, 2^136785699 is an apocalyptic number.

136785699 is a deficient number, since it is larger than the sum of its proper divisors (65859821).

136785699 is an equidigital number, since it uses as much as digits as its factorization.

136785699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5066146 (or 5066140 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The square root of 136785699 is about 11695.5418429417. The cubic root of 136785699 is about 515.2447374184.

The spelling of 136785699 in words is "one hundred thirty-six million, seven hundred eighty-five thousand, six hundred ninety-nine".