133111143 has 48 divisors (see below), whose sum is σ = 223202304. Its totient is φ = 75641280.

The previous prime is 133111109. The next prime is 133111151. The reversal of 133111143 is 341111331.

It is not a de Polignac number, because 133111143 - 2⁶ = 133111079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133112143) 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 47 ways as a sum of consecutive naturals, for example, 120130 + ... + 121232.

It is an arithmetic number, because the mean of its divisors is an integer number (4650048).

Almost surely, 2^133111143 is an apocalyptic number.

133111143 is a deficient number, since it is larger than the sum of its proper divisors (90091161).

133111143 is a wasteful number, since it uses less digits than its factorization.

133111143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196 (or 1193 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 133111143 is about 11537.3802485660. The cubic root of 133111143 is about 510.5890195710.

Adding to 133111143 its reverse (341111331), we get a palindrome (474222474).

The spelling of 133111143 in words is "one hundred thirty-three million, one hundred eleven thousand, one hundred forty-three".