133541141 has 4 divisors (see below), whose sum is σ = 136798284. Its totient is φ = 130284000.

The previous prime is 133541129. The next prime is 133541153. The reversal of 133541141 is 141145331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 141145331 = 5021 ⋅28111.

It is an interprime number because it is at equal distance from previous prime (133541129) and next prime (133541153).

It can be written as a sum of positive squares in 2 ways, for example, as 7540516 + 126000625 = 2746^2 + 11225^2 .

It is a cyclic number.

It is not a de Polignac number, because 133541141 - 2²² = 129346837 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 (133501141) 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 3 ways as a sum of consecutive naturals, for example, 1628510 + ... + 1628591.

It is an arithmetic number, because the mean of its divisors is an integer number (34199571).

Almost surely, 2^133541141 is an apocalyptic number.

It is an amenable number.

133541141 is a deficient number, since it is larger than the sum of its proper divisors (3257143).

133541141 is an equidigital number, since it uses as much as digits as its factorization.

133541141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3257142.

The product of its digits is 720, while the sum is 23.

The square root of 133541141 is about 11556.0002163378. Note that the first 3 decimals coincide. The cubic root of 133541141 is about 511.1382254554.

Adding to 133541141 its reverse (141145331), we get a palindrome (274686472).

The spelling of 133541141 in words is "one hundred thirty-three million, five hundred forty-one thousand, one hundred forty-one".