133702710721 has 4 divisors (see below), whose sum is σ = 134600044500. Its totient is φ = 132805376944.

The previous prime is 133702710709. The next prime is 133702710731. The reversal of 133702710721 is 127017207331.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24479731600 + 109222979121 = 156460^2 + 330489^2 .

It is a cyclic number.

It is not a de Polignac number, because 133702710721 - 2⁹ = 133702710209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133702710731) 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, 448666666 + ... + 448666963.

It is an arithmetic number, because the mean of its divisors is an integer number (33650011125).

Almost surely, 2^133702710721 is an apocalyptic number.

It is an amenable number.

133702710721 is a deficient number, since it is larger than the sum of its proper divisors (897333779).

133702710721 is an equidigital number, since it uses as much as digits as its factorization.

133702710721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897333778.

The product of its (nonzero) digits is 12348, while the sum is 34.

The spelling of 133702710721 in words is "one hundred thirty-three billion, seven hundred two million, seven hundred ten thousand, seven hundred twenty-one".