133630803 has 14 divisors (see below), whose sum is σ = 200355644. Its totient is φ = 89086716.

The previous prime is 133630751. The next prime is 133630837. The reversal of 133630803 is 308036331.

It is not a de Polignac number, because 133630803 - 2¹² = 133626707 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133630843) 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 13 ways as a sum of consecutive naturals, for example, 90925 + ... + 92382.

Almost surely, 2^133630803 is an apocalyptic number.

133630803 is a deficient number, since it is larger than the sum of its proper divisors (66724841).

133630803 is an frugal number, since it uses more digits than its factorization.

133630803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183325 (or 183310 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 133630803 is about 11559.8790218583. The cubic root of 133630803 is about 511.2525957588.

The spelling of 133630803 in words is "one hundred thirty-three million, six hundred thirty thousand, eight hundred three".