133840948 has 12 divisors (see below), whose sum is σ = 234986752. Its totient is φ = 66701880.

The previous prime is 133840943. The next prime is 133840957. The reversal of 133840948 is 849048331.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 133840948.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133840943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53268 + ... + 55723.

Almost surely, 2^133840948 is an apocalyptic number.

It is an amenable number.

133840948 is a deficient number, since it is larger than the sum of its proper divisors (101145804).

133840948 is a wasteful number, since it uses less digits than its factorization.

133840948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109302 (or 109300 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 133840948 is about 11568.9648629426. The cubic root of 133840948 is about 511.5204504392.

The spelling of 133840948 in words is "one hundred thirty-three million, eight hundred forty thousand, nine hundred forty-eight".