104732561 has 2 divisors, whose sum is σ = 104732562. Its totient is φ = 104732560.

The previous prime is 104732531. The next prime is 104732587. The reversal of 104732561 is 165237401.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96432400 + 8300161 = 9820^2 + 2881^2 .

It is a cyclic number.

It is not a de Polignac number, because 104732561 - 2¹⁰ = 104731537 is a prime.

It is not a weakly prime, because it can be changed into another prime (104732521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52366280 + 52366281.

It is an arithmetic number, because the mean of its divisors is an integer number (52366281).

Almost surely, 2^104732561 is an apocalyptic number.

It is an amenable number.

104732561 is a deficient number, since it is larger than the sum of its proper divisors (1).

104732561 is an equidigital number, since it uses as much as digits as its factorization.

104732561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 104732561 is about 10233.8927588675. The cubic root of 104732561 is about 471.3685192780.

Adding to 104732561 its reverse (165237401), we get a palindrome (269969962).

The spelling of 104732561 in words is "one hundred four million, seven hundred thirty-two thousand, five hundred sixty-one".