104521061 has 2 divisors, whose sum is σ = 104521062. Its totient is φ = 104521060.

The previous prime is 104521031. The next prime is 104521069. The reversal of 104521061 is 160125401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92756161 + 11764900 = 9631^2 + 3430^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104521061 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104521069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52260530 + 52260531.

It is an arithmetic number, because the mean of its divisors is an integer number (52260531).

Almost surely, 2^104521061 is an apocalyptic number.

It is an amenable number.

104521061 is a deficient number, since it is larger than the sum of its proper divisors (1).

104521061 is an equidigital number, since it uses as much as digits as its factorization.

104521061 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 104521061 is about 10223.5542254150. The cubic root of 104521061 is about 471.0510069880.

Adding to 104521061 its reverse (160125401), we get a palindrome (264646462).

The spelling of 104521061 in words is "one hundred four million, five hundred twenty-one thousand, sixty-one".