133555642 has 8 divisors (see below), whose sum is σ = 218545632. Its totient is φ = 60707100.

The previous prime is 133555637. The next prime is 133555651. The reversal of 133555642 is 246555331.

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 = 133555598 and 133555607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3035334 + ... + 3035377.

It is an arithmetic number, because the mean of its divisors is an integer number (27318204).

Almost surely, 2^133555642 is an apocalyptic number.

133555642 is a deficient number, since it is larger than the sum of its proper divisors (84989990).

133555642 is a wasteful number, since it uses less digits than its factorization.

133555642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6070724.

The product of its digits is 54000, while the sum is 34.

The square root of 133555642 is about 11556.6276222780. The cubic root of 133555642 is about 511.1567259891.

The spelling of 133555642 in words is "one hundred thirty-three million, five hundred fifty-five thousand, six hundred forty-two".