135686803 has 8 divisors (see below), whose sum is σ = 155767808. Its totient is φ = 115780104.

The previous prime is 135686777. The next prime is 135686813. The reversal of 135686803 is 308686531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135686803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135686813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41901 + ... + 45022.

It is an arithmetic number, because the mean of its divisors is an integer number (19470976).

Almost surely, 2^135686803 is an apocalyptic number.

135686803 is a deficient number, since it is larger than the sum of its proper divisors (20081005).

135686803 is an equidigital number, since it uses as much as digits as its factorization.

135686803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87153.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 135686803 is about 11648.4678391624. The cubic root of 135686803 is about 513.8612511384.

The spelling of 135686803 in words is "one hundred thirty-five million, six hundred eighty-six thousand, eight hundred three".