133481494959 has 32 divisors (see below), whose sum is σ = 188513952000. Its totient is φ = 83867616000.

The previous prime is 133481494943. The next prime is 133481494961. The reversal of 133481494959 is 959494184331.

It is not a de Polignac number, because 133481494959 - 2⁴ = 133481494943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133481484959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6345459 + ... + 6366459.

It is an arithmetic number, because the mean of its divisors is an integer number (5891061000).

Almost surely, 2^133481494959 is an apocalyptic number.

133481494959 is a deficient number, since it is larger than the sum of its proper divisors (55032457041).

133481494959 is a wasteful number, since it uses less digits than its factorization.

133481494959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22775.

The product of its digits is 16796160, while the sum is 60.

The spelling of 133481494959 in words is "one hundred thirty-three billion, four hundred eighty-one million, four hundred ninety-four thousand, nine hundred fifty-nine".