133481463 has 8 divisors (see below), whose sum is σ = 178609776. Its totient is φ = 88670400.

The previous prime is 133481419. The next prime is 133481473. The reversal of 133481463 is 364184331.

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

It is a de Polignac number, because none of the positive numbers 2^k-133481463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133481473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78328 + ... + 80013.

It is an arithmetic number, because the mean of its divisors is an integer number (22326222).

Almost surely, 2^133481463 is an apocalyptic number.

133481463 is a deficient number, since it is larger than the sum of its proper divisors (45128313).

133481463 is a wasteful number, since it uses less digits than its factorization.

133481463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158625.

The product of its digits is 20736, while the sum is 33.

The square root of 133481463 is about 11553.4178060001. The cubic root of 133481463 is about 511.0620735124.

The spelling of 133481463 in words is "one hundred thirty-three million, four hundred eighty-one thousand, four hundred sixty-three".