133183211 has 16 divisors (see below), whose sum is σ = 157828608. Its totient is φ = 110011200.

The previous prime is 133183207. The next prime is 133183247. The reversal of 133183211 is 112381331.

It is not a de Polignac number, because 133183211 - 2² = 133183207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133180211) 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 15 ways as a sum of consecutive naturals, for example, 21026 + ... + 26616.

It is an arithmetic number, because the mean of its divisors is an integer number (9864288).

Almost surely, 2^133183211 is an apocalyptic number.

133183211 is a deficient number, since it is larger than the sum of its proper divisors (24645397).

133183211 is an equidigital number, since it uses as much as digits as its factorization.

133183211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5722.

The product of its digits is 432, while the sum is 23.

The square root of 133183211 is about 11540.5030652914. The cubic root of 133183211 is about 510.6811493252.

The spelling of 133183211 in words is "one hundred thirty-three million, one hundred eighty-three thousand, two hundred eleven".