133127042 has 4 divisors (see below), whose sum is σ = 199690566. Its totient is φ = 66563520.

The previous prime is 133127039. The next prime is 133127083. The reversal of 133127042 is 240721331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 124300201 + 8826841 = 11149^2 + 2971^2 .

It is a junction number, because it is equal to n+sod(n) for n = 133126999 and 133127017.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33281759 + ... + 33281762.

Almost surely, 2^133127042 is an apocalyptic number.

133127042 is a deficient number, since it is larger than the sum of its proper divisors (66563524).

133127042 is an equidigital number, since it uses as much as digits as its factorization.

133127042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66563523.

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

The square root of 133127042 is about 11538.0692492288. The cubic root of 133127042 is about 510.6093472747.

Adding to 133127042 its reverse (240721331), we get a palindrome (373848373).

The spelling of 133127042 in words is "one hundred thirty-three million, one hundred twenty-seven thousand, forty-two".