133132642 has 4 divisors (see below), whose sum is σ = 199698966. Its totient is φ = 66566320.

The previous prime is 133132633. The next prime is 133132679. The reversal of 133132642 is 246231331.

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., 123454321 + 9678321 = 11111^2 + 3111^2 .

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, 33283159 + ... + 33283162.

Almost surely, 2^133132642 is an apocalyptic number.

133132642 is a deficient number, since it is larger than the sum of its proper divisors (66566324).

133132642 is an equidigital number, since it uses as much as digits as its factorization.

133132642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66566323.

The product of its digits is 2592, while the sum is 25.

The square root of 133132642 is about 11538.3119215941. The cubic root of 133132642 is about 510.6165067824.

Adding to 133132642 its reverse (246231331), we get a palindrome (379363973).

The spelling of 133132642 in words is "one hundred thirty-three million, one hundred thirty-two thousand, six hundred forty-two".