133530411 has 8 divisors (see below), whose sum is σ = 203474944. Its totient is φ = 76303080.

The previous prime is 133530407. The next prime is 133530421. The reversal of 133530411 is 114035331.

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

It is not a de Polignac number, because 133530411 - 2² = 133530407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 6358591 = 133530411 / (1 + 3 + 3 + 5 + 3 + 0 + 4 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133530401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3179275 + ... + 3179316.

It is an arithmetic number, because the mean of its divisors is an integer number (25434368).

Almost surely, 2^133530411 is an apocalyptic number.

133530411 is a deficient number, since it is larger than the sum of its proper divisors (69944533).

133530411 is an equidigital number, since it uses as much as digits as its factorization.

133530411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6358601.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 133530411 is about 11555.5359460304. The cubic root of 133530411 is about 511.1245351424.

Adding to 133530411 its reverse (114035331), we get a palindrome (247565742).

The spelling of 133530411 in words is "one hundred thirty-three million, five hundred thirty thousand, four hundred eleven".