133281008353 has 4 divisors (see below), whose sum is σ = 133358997780. Its totient is φ = 133203018928.

The previous prime is 133281008299. The next prime is 133281008359. The reversal of 133281008353 is 353800182331.

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 95071705569 + 38209302784 = 308337^2 + 195472^2 .

It is a cyclic number.

It is not a de Polignac number, because 133281008353 - 2¹⁷ = 133280877281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133281008359) by changing a digit.

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, 38992150 + ... + 38995567.

It is an arithmetic number, because the mean of its divisors is an integer number (33339749445).

Almost surely, 2^133281008353 is an apocalyptic number.

It is an amenable number.

133281008353 is a deficient number, since it is larger than the sum of its proper divisors (77989427).

133281008353 is an equidigital number, since it uses as much as digits as its factorization.

133281008353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77989426.

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 133281008353 in words is "one hundred thirty-three billion, two hundred eighty-one million, eight thousand, three hundred fifty-three".