133481494946 has 16 divisors (see below), whose sum is σ = 200598202080. Its totient is φ = 66615484320.

The previous prime is 133481494943. The next prime is 133481494961. The reversal of 133481494946 is 649494184331.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 133481494891 and 133481494900.

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 7 ways as a sum of consecutive naturals, for example, 5777165 + ... + 5800223.

It is an arithmetic number, because the mean of its divisors is an integer number (12537387630).

Almost surely, 2^133481494946 is an apocalyptic number.

133481494946 is a deficient number, since it is larger than the sum of its proper divisors (67116707134).

133481494946 is a wasteful number, since it uses less digits than its factorization.

133481494946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28369.

The product of its digits is 8957952, while the sum is 56.

The spelling of 133481494946 in words is "one hundred thirty-three billion, four hundred eighty-one million, four hundred ninety-four thousand, nine hundred forty-six".