135867766 has 4 divisors (see below), whose sum is σ = 203801652. Its totient is φ = 67933882.

The previous prime is 135867733. The next prime is 135867769. The reversal of 135867766 is 667768531.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135867769) 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 as a sum of consecutive naturals, namely, 33966940 + ... + 33966943.

It is an arithmetic number, because the mean of its divisors is an integer number (50950413).

Almost surely, 2^135867766 is an apocalyptic number.

135867766 is a deficient number, since it is larger than the sum of its proper divisors (67933886).

135867766 is an equidigital number, since it uses as much as digits as its factorization.

135867766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67933885.

The product of its digits is 1270080, while the sum is 49.

The square root of 135867766 is about 11656.2329249205. The cubic root of 135867766 is about 514.0895920983.

The spelling of 135867766 in words is "one hundred thirty-five million, eight hundred sixty-seven thousand, seven hundred sixty-six".