133001211 has 16 divisors (see below), whose sum is σ = 206982144. Its totient is φ = 74383104.

The previous prime is 133001207. The next prime is 133001233. The reversal of 133001211 is 112100331.

It is not a de Polignac number, because 133001211 - 2² = 133001207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133001291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66390 + ... + 68363.

It is an arithmetic number, because the mean of its divisors is an integer number (12936384).

Almost surely, 2^133001211 is an apocalyptic number.

133001211 is a deficient number, since it is larger than the sum of its proper divisors (73980933).

133001211 is a wasteful number, since it uses less digits than its factorization.

133001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134810.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 133001211 is about 11532.6150980599. The cubic root of 133001211 is about 510.4484214465.

Adding to 133001211 its reverse (112100331), we get a palindrome (245101542).

The spelling of 133001211 in words is "one hundred thirty-three million, one thousand, two hundred eleven".