133185103 has 4 divisors (see below), whose sum is σ = 133225488. Its totient is φ = 133144720.

The previous prime is 133185067. The next prime is 133185113. The reversal of 133185103 is 301581331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133185103 is a prime.

It is a super-2 number, since 2×133185103² = 35476543322241218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133185113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14758 + ... + 22003.

It is an arithmetic number, because the mean of its divisors is an integer number (33306372).

Almost surely, 2^133185103 is an apocalyptic number.

133185103 is a deficient number, since it is larger than the sum of its proper divisors (40385).

133185103 is an equidigital number, since it uses as much as digits as its factorization.

133185103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40384.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 133185103 is about 11540.5850371634. The cubic root of 133185103 is about 510.6835675583.

The spelling of 133185103 in words is "one hundred thirty-three million, one hundred eighty-five thousand, one hundred three".