133521455473 has 8 divisors (see below), whose sum is σ = 153056966720. Its totient is φ = 114101198640.

The previous prime is 133521455467. The next prime is 133521455531. The reversal of 133521455473 is 374554125331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133521455473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133521459473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28811118 + ... + 28815751.

It is an arithmetic number, because the mean of its divisors is an integer number (19132120840).

Almost surely, 2^133521455473 is an apocalyptic number.

It is an amenable number.

133521455473 is a deficient number, since it is larger than the sum of its proper divisors (19535511247).

133521455473 is an equidigital number, since it uses as much as digits as its factorization.

133521455473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57627207.

The product of its digits is 756000, while the sum is 43.

The spelling of 133521455473 in words is "one hundred thirty-three billion, five hundred twenty-one million, four hundred fifty-five thousand, four hundred seventy-three".