133685863 has 8 divisors (see below), whose sum is σ = 135547776. Its totient is φ = 131835000.

The previous prime is 133685861. The next prime is 133685869. The reversal of 133685863 is 368586331.

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

It is a cyclic number.

It is not a de Polignac number, because 133685863 - 2¹ = 133685861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133685861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23268 + ... + 28438.

It is an arithmetic number, because the mean of its divisors is an integer number (16943472).

Almost surely, 2^133685863 is an apocalyptic number.

133685863 is a deficient number, since it is larger than the sum of its proper divisors (1861913).

133685863 is a wasteful number, since it uses less digits than its factorization.

133685863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5525.

The product of its digits is 311040, while the sum is 43.

The square root of 133685863 is about 11562.2602894071. The cubic root of 133685863 is about 511.3228033806.

The spelling of 133685863 in words is "one hundred thirty-three million, six hundred eighty-five thousand, eight hundred sixty-three".