133112242 has 8 divisors (see below), whose sum is σ = 200070000. Its totient is φ = 66422244.

The previous prime is 133112209. The next prime is 133112249. The reversal of 133112242 is 242211331.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (133112249) 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, 65692 + ... + 67687.

It is an arithmetic number, because the mean of its divisors is an integer number (25008750).

Almost surely, 2^133112242 is an apocalyptic number.

133112242 is a deficient number, since it is larger than the sum of its proper divisors (66957758).

133112242 is a wasteful number, since it uses less digits than its factorization.

133112242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133880.

The product of its digits is 288, while the sum is 19.

The square root of 133112242 is about 11537.4278762643. The cubic root of 133112242 is about 510.5904247521.

Adding to 133112242 its reverse (242211331), we get a palindrome (375323573).

The spelling of 133112242 in words is "one hundred thirty-three million, one hundred twelve thousand, two hundred forty-two".