133148121 has 8 divisors (see below), whose sum is σ = 177592320. Its totient is φ = 88734672.

The previous prime is 133148111. The next prime is 133148129. The reversal of 133148121 is 121841331.

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

It is not a de Polignac number, because 133148121 - 2¹¹ = 133146073 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 133148091 and 133148100.

It is not an unprimeable number, because it can be changed into a prime (133148129) 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, 5800 + ... + 17318.

It is an arithmetic number, because the mean of its divisors is an integer number (22199040).

Almost surely, 2^133148121 is an apocalyptic number.

It is an amenable number.

133148121 is a deficient number, since it is larger than the sum of its proper divisors (44444199).

133148121 is a wasteful number, since it uses less digits than its factorization.

133148121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15375.

The product of its digits is 576, while the sum is 24.

The square root of 133148121 is about 11538.9826674625. The cubic root of 133148121 is about 510.6362953845.

Adding to 133148121 its reverse (121841331), we get a palindrome (254989452).

The spelling of 133148121 in words is "one hundred thirty-three million, one hundred forty-eight thousand, one hundred twenty-one".