104061521 has 2 divisors, whose sum is σ = 104061522. Its totient is φ = 104061520.

The previous prime is 104061497. The next prime is 104061527. The reversal of 104061521 is 125160401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99221521 + 4840000 = 9961^2 + 2200^2 .

It is a cyclic number.

It is not a de Polignac number, because 104061521 - 2⁶ = 104061457 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 104061493 and 104061502.

It is not a weakly prime, because it can be changed into another prime (104061527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52030760 + 52030761.

It is an arithmetic number, because the mean of its divisors is an integer number (52030761).

Almost surely, 2^104061521 is an apocalyptic number.

It is an amenable number.

104061521 is a deficient number, since it is larger than the sum of its proper divisors (1).

104061521 is an equidigital number, since it uses as much as digits as its factorization.

104061521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 104061521 is about 10201.0548964311. The cubic root of 104061521 is about 470.3596477666.

The spelling of 104061521 in words is "one hundred four million, sixty-one thousand, five hundred twenty-one".