133124121 has 32 divisors (see below), whose sum is σ = 213198720. Its totient is φ = 81611712.

The previous prime is 133124107. The next prime is 133124191. The reversal of 133124121 is 121421331.

It is not a de Polignac number, because 133124121 - 2⁷ = 133123993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133124094 and 133124103.

It is not an unprimeable number, because it can be changed into a prime (133124191) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121251 + ... + 122343.

It is an arithmetic number, because the mean of its divisors is an integer number (6662460).

Almost surely, 2^133124121 is an apocalyptic number.

It is an amenable number.

133124121 is a deficient number, since it is larger than the sum of its proper divisors (80074599).

133124121 is a wasteful number, since it uses less digits than its factorization.

133124121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1462 (or 1456 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 133124121 is about 11537.9426675643. The cubic root of 133124121 is about 510.6056127447.

Adding to 133124121 its reverse (121421331), we get a palindrome (254545452).

It can be divided in two parts, 1331 and 24121, that added together give a palindrome (25452).

The spelling of 133124121 in words is "one hundred thirty-three million, one hundred twenty-four thousand, one hundred twenty-one".