133133242 has 8 divisors (see below), whose sum is σ = 217854432. Its totient is φ = 60515100.

The previous prime is 133133237. The next prime is 133133243. The reversal of 133133242 is 242331331.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 6051511 = 133133242 / (1 + 3 + 3 + 1 + 3 + 3 + 2 + 4 + 2).

It is not an unprimeable number, because it can be changed into a prime (133133243) 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, 3025734 + ... + 3025777.

It is an arithmetic number, because the mean of its divisors is an integer number (27231804).

Almost surely, 2^133133242 is an apocalyptic number.

133133242 is a deficient number, since it is larger than the sum of its proper divisors (84721190).

133133242 is a wasteful number, since it uses less digits than its factorization.

133133242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6051524.

The product of its digits is 1296, while the sum is 22.

The square root of 133133242 is about 11538.3379219019. The cubic root of 133133242 is about 510.6172738606.

Adding to 133133242 its reverse (242331331), we get a palindrome (375464573).

The spelling of 133133242 in words is "one hundred thirty-three million, one hundred thirty-three thousand, two hundred forty-two".