133945716 has 12 divisors (see below), whose sum is σ = 312540032. Its totient is φ = 44648568.

The previous prime is 133945711. The next prime is 133945717. The reversal of 133945716 is 617549331.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133945711) by changing a digit.

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, 5581060 + ... + 5581083.

Almost surely, 2^133945716 is an apocalyptic number.

It is an amenable number.

133945716 is an abundant number, since it is smaller than the sum of its proper divisors (178594316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133945716 is a wasteful number, since it uses less digits than its factorization.

133945716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11162150 (or 11162148 counting only the distinct ones).

The product of its digits is 68040, while the sum is 39.

The square root of 133945716 is about 11573.4919535981. The cubic root of 133945716 is about 511.6538849327.

It can be divided in two parts, 13394 and 5716, that added together give a triangular number (19110 = T₁₉₅).

The spelling of 133945716 in words is "one hundred thirty-three million, nine hundred forty-five thousand, seven hundred sixteen".