133041121 has 4 divisors (see below), whose sum is σ = 133280532. Its totient is φ = 132801712.

The previous prime is 133041109. The next prime is 133041127. The reversal of 133041121 is 121140331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3900625 + 129140496 = 1975^2 + 11364^2 .

It is a cyclic number.

It is not a de Polignac number, because 133041121 - 2¹³ = 133032929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133041095 and 133041104.

It is not an unprimeable number, because it can be changed into a prime (133041127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118870 + ... + 119983.

It is an arithmetic number, because the mean of its divisors is an integer number (33320133).

Almost surely, 2^133041121 is an apocalyptic number.

It is an amenable number.

133041121 is a deficient number, since it is larger than the sum of its proper divisors (239411).

133041121 is an equidigital number, since it uses as much as digits as its factorization.

133041121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239410.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 133041121 is about 11534.3452783415. The cubic root of 133041121 is about 510.4994735108.

Adding to 133041121 its reverse (121140331), we get a palindrome (254181452).

The spelling of 133041121 in words is "one hundred thirty-three million, forty-one thousand, one hundred twenty-one".