133504747 has 4 divisors (see below), whose sum is σ = 133626240. Its totient is φ = 133383256.

The previous prime is 133504741. The next prime is 133504759. The reversal of 133504747 is 747405331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 747405331 = 359 ⋅2081909.

It is a cyclic number.

It is not a de Polignac number, because 133504747 - 2²³ = 125116139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133504741) 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 3 ways as a sum of consecutive naturals, for example, 59083 + ... + 61300.

It is an arithmetic number, because the mean of its divisors is an integer number (33406560).

Almost surely, 2^133504747 is an apocalyptic number.

133504747 is a deficient number, since it is larger than the sum of its proper divisors (121493).

133504747 is a wasteful number, since it uses less digits than its factorization.

133504747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121492.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 133504747 is about 11554.4254292457. The cubic root of 133504747 is about 511.0917876945.

The spelling of 133504747 in words is "one hundred thirty-three million, five hundred four thousand, seven hundred forty-seven".