136785752 has 16 divisors (see below), whose sum is σ = 262438440. Its totient is φ = 66802176.

The previous prime is 136785749. The next prime is 136785763. The reversal of 136785752 is 257587631.

It is a happy number.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 198473 + ... + 199160.

Almost surely, 2^136785752 is an apocalyptic number.

It is an amenable number.

136785752 is a deficient number, since it is larger than the sum of its proper divisors (125652688).

136785752 is a wasteful number, since it uses less digits than its factorization.

136785752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397682 (or 397678 counting only the distinct ones).

The product of its digits is 352800, while the sum is 44.

The square root of 136785752 is about 11695.5441087621. The cubic root of 136785752 is about 515.2448039653.

The spelling of 136785752 in words is "one hundred thirty-six million, seven hundred eighty-five thousand, seven hundred fifty-two".