133678648 has 16 divisors (see below), whose sum is σ = 251910000. Its totient is φ = 66502656.

The previous prime is 133678591. The next prime is 133678673. The reversal of 133678648 is 846876331.

133678648 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×133678648² = 35739961862215808, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133678598 and 133678607.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 40393 + ... + 43576.

It is an arithmetic number, because the mean of its divisors is an integer number (15744375).

Almost surely, 2^133678648 is an apocalyptic number.

It is an amenable number.

133678648 is a deficient number, since it is larger than the sum of its proper divisors (118231352).

133678648 is a wasteful number, since it uses less digits than its factorization.

133678648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84174 (or 84170 counting only the distinct ones).

The product of its digits is 580608, while the sum is 46.

The square root of 133678648 is about 11561.9482787288. The cubic root of 133678648 is about 511.3136045511.

The spelling of 133678648 in words is "one hundred thirty-three million, six hundred seventy-eight thousand, six hundred forty-eight".