133481494948 has 12 divisors (see below), whose sum is σ = 247333358412.
Its totient is φ = 62814821120.
The previous prime is 133481494943. The next prime is 133481494961. The reversal of 133481494948 is 849494184331.
It can be written as a sum of positive squares in 2 ways, for example, as 65736857664 + 67744637284 = 256392^2 + 260278^2
It is a junction number, because it is equal to n+sod(n) for n = 133481494892 and 133481494901.
It is not an unprimeable number, because it can be changed into a prime (133481494943) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 981481513 + ... + 981481648.
It is an arithmetic number, because the mean of its divisors is an integer number (20611113201).
Almost surely, 2133481494948 is an apocalyptic number.
It is an amenable number.
133481494948 is a deficient number, since it is larger than the sum of its proper divisors (113851863464).
133481494948 is a wasteful number, since it uses less digits than its factorization.
133481494948 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1962963182 (or 1962963180 counting only the distinct ones).
The product of its digits is 11943936, while the sum is 58.
The spelling of 133481494948 in words is "one hundred thirty-three billion, four hundred eighty-one million, four hundred ninety-four thousand, nine hundred forty-eight".