133015143447 has 48 divisors (see below), whose sum is σ = 199304202240. Its totient is φ = 85426076736.

The previous prime is 133015143433. The next prime is 133015143473. The reversal of 133015143447 is 744341510331.

133015143447 is a `hidden beast` number, since 1 + 3 + 30 + 151 + 434 + 47 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-133015143447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133015143427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39040018 + ... + 39043424.

It is an arithmetic number, because the mean of its divisors is an integer number (4152170880).

Almost surely, 2^133015143447 is an apocalyptic number.

133015143447 is a deficient number, since it is larger than the sum of its proper divisors (66289058793).

133015143447 is a wasteful number, since it uses less digits than its factorization.

133015143447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4812 (or 4809 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

Adding to 133015143447 its reverse (744341510331), we get a palindrome (877356653778).

The spelling of 133015143447 in words is "one hundred thirty-three billion, fifteen million, one hundred forty-three thousand, four hundred forty-seven".