133672556 has 12 divisors (see below), whose sum is σ = 234798480. Its totient is φ = 66587280.

The previous prime is 133672493. The next prime is 133672603. The reversal of 133672556 is 655276331.

133672556 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 61040 + ... + 63191.

It is an arithmetic number, because the mean of its divisors is an integer number (19566540).

Almost surely, 2^133672556 is an apocalyptic number.

It is an amenable number.

133672556 is a deficient number, since it is larger than the sum of its proper divisors (101125924).

133672556 is a wasteful number, since it uses less digits than its factorization.

133672556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124504 (or 124502 counting only the distinct ones).

The product of its digits is 113400, while the sum is 38.

The square root of 133672556 is about 11561.6848253185. The cubic root of 133672556 is about 511.3058372428.

The spelling of 133672556 in words is "one hundred thirty-three million, six hundred seventy-two thousand, five hundred fifty-six".