104751047521 has 2 divisors, whose sum is σ = 104751047522. Its totient is φ = 104751047520.

The previous prime is 104751047503. The next prime is 104751047543. The reversal of 104751047521 is 125740157401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92742175296 + 12008872225 = 304536^2 + 109585^2 .

It is a cyclic number.

It is not a de Polignac number, because 104751047521 - 2²³ = 104742658913 is a prime.

It is not a weakly prime, because it can be changed into another prime (104751047501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52375523760 + 52375523761.

It is an arithmetic number, because the mean of its divisors is an integer number (52375523761).

Almost surely, 2^104751047521 is an apocalyptic number.

It is an amenable number.

104751047521 is a deficient number, since it is larger than the sum of its proper divisors (1).

104751047521 is an equidigital number, since it uses as much as digits as its factorization.

104751047521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39200, while the sum is 37.

The spelling of 104751047521 in words is "one hundred four billion, seven hundred fifty-one million, forty-seven thousand, five hundred twenty-one".