133500823 has 8 divisors (see below), whose sum is σ = 134289792. Its totient is φ = 132714936.

The previous prime is 133500811. The next prime is 133500827. The reversal of 133500823 is 328005331.

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 133500823 - 2⁵ = 133500791 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 (133500827) 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, 227136 + ... + 227722.

It is an arithmetic number, because the mean of its divisors is an integer number (16786224).

Almost surely, 2^133500823 is an apocalyptic number.

133500823 is a deficient number, since it is larger than the sum of its proper divisors (788969).

133500823 is an equidigital number, since it uses as much as digits as its factorization.

133500823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 133500823 is about 11554.2556229296. The cubic root of 133500823 is about 511.0867802725.

The spelling of 133500823 in words is "one hundred thirty-three million, five hundred thousand, eight hundred twenty-three".