133507323 has 12 divisors (see below), whose sum is σ = 193294920. Its totient is φ = 88796736.

The previous prime is 133507313. The next prime is 133507327. The reversal of 133507323 is 323705331.

133507323 is a `hidden beast` number, since 1 + 335 + 0 + 7 + 323 = 666.

It is not a de Polignac number, because 133507323 - 2⁶ = 133507259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133507327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13233 + ... + 21026.

It is an arithmetic number, because the mean of its divisors is an integer number (16107910).

Almost surely, 2^133507323 is an apocalyptic number.

133507323 is a deficient number, since it is larger than the sum of its proper divisors (59787597).

133507323 is a wasteful number, since it uses less digits than its factorization.

133507323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34698 (or 34695 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 27.

The square root of 133507323 is about 11554.5369011484. The cubic root of 133507323 is about 511.0950748784.

The spelling of 133507323 in words is "one hundred thirty-three million, five hundred seven thousand, three hundred twenty-three".