133143211 has 4 divisors (see below), whose sum is σ = 133172424. Its totient is φ = 133114000.

The previous prime is 133143191. The next prime is 133143217. The reversal of 133143211 is 112341331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112341331 = 29 ⋅3873839.

It is a cyclic number.

It is not a de Polignac number, because 133143211 - 2⁷ = 133143083 is a prime.

It is a super-2 number, since 2×133143211² = 35454229270781042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133143217) 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 in 3 ways as a sum of consecutive naturals, for example, 6130 + ... + 17431.

It is an arithmetic number, because the mean of its divisors is an integer number (33293106).

Almost surely, 2^133143211 is an apocalyptic number.

133143211 is a deficient number, since it is larger than the sum of its proper divisors (29213).

133143211 is an equidigital number, since it uses as much as digits as its factorization.

133143211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29212.

The product of its digits is 216, while the sum is 19.

The square root of 133143211 is about 11538.7699084434. The cubic root of 133143211 is about 510.6300185278.

Adding to 133143211 its reverse (112341331), we get a palindrome (245484542).

The spelling of 133143211 in words is "one hundred thirty-three million, one hundred forty-three thousand, two hundred eleven".