133442141 has 12 divisors (see below), whose sum is σ = 155793312. Its totient is φ = 113962968.

The previous prime is 133442117. The next prime is 133442191. The reversal of 133442141 is 141244331.

It is not a de Polignac number, because 133442141 - 2¹⁰ = 133441117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133442191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9056 + ... + 18678.

It is an arithmetic number, because the mean of its divisors is an integer number (12982776).

Almost surely, 2^133442141 is an apocalyptic number.

It is an amenable number.

133442141 is a deficient number, since it is larger than the sum of its proper divisors (22351171).

133442141 is an equidigital number, since it uses as much as digits as its factorization.

133442141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9920 (or 9913 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 133442141 is about 11551.7159331417. The cubic root of 133442141 is about 511.0118843799.

Adding to 133442141 its reverse (141244331), we get a palindrome (274686472).

The spelling of 133442141 in words is "one hundred thirty-three million, four hundred forty-two thousand, one hundred forty-one".