133500323 has 4 divisors (see below), whose sum is σ = 145636728. Its totient is φ = 121363920.

The previous prime is 133500319. The next prime is 133500343. The reversal of 133500323 is 323005331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323005331 = 11 ⋅29364121.

It is a cyclic number.

It is not a de Polignac number, because 133500323 - 2² = 133500319 is a prime.

It is a super-2 number, since 2×133500323² = 35644672482208658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133500295 and 133500304.

It is not an unprimeable number, because it can be changed into a prime (133500313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6068186 + ... + 6068207.

It is an arithmetic number, because the mean of its divisors is an integer number (36409182).

Almost surely, 2^133500323 is an apocalyptic number.

133500323 is a deficient number, since it is larger than the sum of its proper divisors (12136405).

133500323 is a wasteful number, since it uses less digits than its factorization.

133500323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12136404.

The product of its (nonzero) digits is 810, while the sum is 20.

The square root of 133500323 is about 11554.2339858599. The cubic root of 133500323 is about 511.0861422147.

Adding to 133500323 its reverse (323005331), we get a palindrome (456505654).

The spelling of 133500323 in words is "one hundred thirty-three million, five hundred thousand, three hundred twenty-three".