133230242 has 16 divisors (see below), whose sum is σ = 214842240. Its totient is φ = 61765488.

The previous prime is 133230233. The next prime is 133230257. The reversal of 133230242 is 242032331.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35513 + ... + 39084.

It is an arithmetic number, because the mean of its divisors is an integer number (13427640).

Almost surely, 2^133230242 is an apocalyptic number.

133230242 is a deficient number, since it is larger than the sum of its proper divisors (81611998).

133230242 is a wasteful number, since it uses less digits than its factorization.

133230242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74665.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 133230242 is about 11542.5405349082. The cubic root of 133230242 is about 510.7412545451.

Adding to 133230242 its reverse (242032331), we get a palindrome (375262573).

The spelling of 133230242 in words is "one hundred thirty-three million, two hundred thirty thousand, two hundred forty-two".