133141145 has 8 divisors (see below), whose sum is σ = 163666440. Its totient is φ = 103914880.

The previous prime is 133141139. The next prime is 133141153. The reversal of 133141145 is 541141331.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18800896 + 114340249 = 4336^2 + 10693^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133141145 - 2⁶ = 133141081 is a prime.

It is a super-2 number, since 2×133141145² = 35453128983822050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 133141145.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 324530 + ... + 324939.

It is an arithmetic number, because the mean of its divisors is an integer number (20458305).

Almost surely, 2^133141145 is an apocalyptic number.

It is an amenable number.

133141145 is a deficient number, since it is larger than the sum of its proper divisors (30525295).

133141145 is an equidigital number, since it uses as much as digits as its factorization.

133141145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649515.

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

The square root of 133141145 is about 11538.6803838221. The cubic root of 133141145 is about 510.6273773440.

Adding to 133141145 its reverse (541141331), we get a palindrome (674282476).

The spelling of 133141145 in words is "one hundred thirty-three million, one hundred forty-one thousand, one hundred forty-five".