133458475812 has 24 divisors (see below), whose sum is σ = 318645044256. Its totient is φ = 43451596608.

The previous prime is 133458475763. The next prime is 133458475819. The reversal of 133458475812 is 218574854331.

It is a super-2 number, since 2×133458475812² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133458475819) 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, 129319713 + ... + 129320744.

It is an arithmetic number, because the mean of its divisors is an integer number (13276876844).

Almost surely, 2^133458475812 is an apocalyptic number.

133458475812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133458475812 is an abundant number, since it is smaller than the sum of its proper divisors (185186568444).

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

133458475812 is a wasteful number, since it uses less digits than its factorization.

133458475812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258640507 (or 258640505 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 51.

The spelling of 133458475812 in words is "one hundred thirty-three billion, four hundred fifty-eight million, four hundred seventy-five thousand, eight hundred twelve".