133013206 has 4 divisors (see below), whose sum is σ = 199519812. Its totient is φ = 66506602.

The previous prime is 133013203. The next prime is 133013207. The reversal of 133013206 is 602310331.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133013203) 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 as a sum of consecutive naturals, namely, 33253300 + ... + 33253303.

It is an arithmetic number, because the mean of its divisors is an integer number (49879953).

Almost surely, 2^133013206 is an apocalyptic number.

133013206 is a deficient number, since it is larger than the sum of its proper divisors (66506606).

133013206 is an equidigital number, since it uses as much as digits as its factorization.

133013206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66506605.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 133013206 is about 11533.1351331717. The cubic root of 133013206 is about 510.4637662811.

Adding to 133013206 its reverse (602310331), we get a palindrome (735323537).

The spelling of 133013206 in words is "one hundred thirty-three million, thirteen thousand, two hundred six".