104451520513 has 8 divisors (see below), whose sum is σ = 111300161832. Its totient is φ = 97681149696.

The previous prime is 104451520463. The next prime is 104451520529. The reversal of 104451520513 is 315025154401.

It can be written as a sum of positive squares in 4 ways, for example, as 27513520384 + 76938000129 = 165872^2 + 277377^2 .

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-104451520513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104451520543) 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, 19564870 + ... + 19570207.

It is an arithmetic number, because the mean of its divisors is an integer number (13912520229).

Almost surely, 2^104451520513 is an apocalyptic number.

It is an amenable number.

104451520513 is a deficient number, since it is larger than the sum of its proper divisors (6848641319).

104451520513 is a wasteful number, since it uses less digits than its factorization.

104451520513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39135251.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 104451520513 its reverse (315025154401), we get a palindrome (419476674914).

The spelling of 104451520513 in words is "one hundred four billion, four hundred fifty-one million, five hundred twenty thousand, five hundred thirteen".