133066503 has 8 divisors (see below), whose sum is σ = 197135600. Its totient is φ = 88710984.

The previous prime is 133066501. The next prime is 133066511. The reversal of 133066503 is 305660331.

133066503 is a `hidden beast` number, since 1 + 3 + 3 + 0 + 6 + 650 + 3 = 666.

It is not a de Polignac number, because 133066503 - 2¹ = 133066501 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 4928389 = 133066503 / (1 + 3 + 3 + 0 + 6 + 6 + 5 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133066501) 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, 2464168 + ... + 2464221.

It is an arithmetic number, because the mean of its divisors is an integer number (24641950).

Almost surely, 2^133066503 is an apocalyptic number.

133066503 is a deficient number, since it is larger than the sum of its proper divisors (64069097).

133066503 is an equidigital number, since it uses as much as digits as its factorization.

133066503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4928398 (or 4928392 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 27.

The square root of 133066503 is about 11535.4455050509. The cubic root of 133066503 is about 510.5319363404.

The spelling of 133066503 in words is "one hundred thirty-three million, sixty-six thousand, five hundred three".