133712042 has 8 divisors (see below), whose sum is σ = 200697696. Its totient is φ = 66812812.

The previous prime is 133712017. The next prime is 133712053. The reversal of 133712042 is 240217331.

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

It is a junction number, because it is equal to n+sod(n) for n = 133711999 and 133712017.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17588 + ... + 24015.

It is an arithmetic number, because the mean of its divisors is an integer number (25087212).

Almost surely, 2^133712042 is an apocalyptic number.

133712042 is a deficient number, since it is larger than the sum of its proper divisors (66985654).

133712042 is a wasteful number, since it uses less digits than its factorization.

133712042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43212.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 133712042 is about 11563.3923223248. The cubic root of 133712042 is about 511.3561777547.

Adding to 133712042 its reverse (240217331), we get a palindrome (373929373).

The spelling of 133712042 in words is "one hundred thirty-three million, seven hundred twelve thousand, forty-two".