133784341 has 4 divisors (see below), whose sum is σ = 137400172. Its totient is φ = 130168512.

The previous prime is 133784333. The next prime is 133784351. The reversal of 133784341 is 143487331.

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 82719025 + 51065316 = 9095^2 + 7146^2 .

It is a cyclic number.

It is not a de Polignac number, because 133784341 - 2³ = 133784333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133784297 and 133784306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133784351) 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, 1807860 + ... + 1807933.

It is an arithmetic number, because the mean of its divisors is an integer number (34350043).

Almost surely, 2^133784341 is an apocalyptic number.

It is an amenable number.

133784341 is a deficient number, since it is larger than the sum of its proper divisors (3615831).

133784341 is an equidigital number, since it uses as much as digits as its factorization.

133784341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3615830.

The product of its digits is 24192, while the sum is 34.

The square root of 133784341 is about 11566.5181018317. The cubic root of 133784341 is about 511.4483257227.

The spelling of 133784341 in words is "one hundred thirty-three million, seven hundred eighty-four thousand, three hundred forty-one".