133020535541 has 4 divisors (see below), whose sum is σ = 134842734732. Its totient is φ = 131198336352.

The previous prime is 133020535481. The next prime is 133020535559. The reversal of 133020535541 is 145535020331.

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 112010033041 + 21010502500 = 334679^2 + 144950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133020535541 is a prime.

It is a super-2 number, since 2×133020535541² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 133020535498 and 133020535507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133020535441) 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, 911099486 + ... + 911099631.

It is an arithmetic number, because the mean of its divisors is an integer number (33710683683).

Almost surely, 2^133020535541 is an apocalyptic number.

It is an amenable number.

133020535541 is a deficient number, since it is larger than the sum of its proper divisors (1822199191).

133020535541 is an equidigital number, since it uses as much as digits as its factorization.

133020535541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1822199190.

The product of its (nonzero) digits is 27000, while the sum is 32.

Adding to 133020535541 its reverse (145535020331), we get a palindrome (278555555872).

The spelling of 133020535541 in words is "one hundred thirty-three billion, twenty million, five hundred thirty-five thousand, five hundred forty-one".