133648892 has 24 divisors (see below), whose sum is σ = 253559712. Its totient is φ = 61272000.

The previous prime is 133648873. The next prime is 133648903. The reversal of 133648892 is 298846331.

133648892 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 659 + ... + 16362.

It is an arithmetic number, because the mean of its divisors is an integer number (10564988).

Almost surely, 2^133648892 is an apocalyptic number.

It is an amenable number.

133648892 is a deficient number, since it is larger than the sum of its proper divisors (119910820).

133648892 is a wasteful number, since it uses less digits than its factorization.

133648892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17189 (or 17187 counting only the distinct ones).

The product of its digits is 248832, while the sum is 44.

The square root of 133648892 is about 11560.6613997643. The cubic root of 133648892 is about 511.2756633718.

The spelling of 133648892 in words is "one hundred thirty-three million, six hundred forty-eight thousand, eight hundred ninety-two".