116146561 has 2 divisors, whose sum is σ = 116146562. Its totient is φ = 116146560.

The previous prime is 116146523. The next prime is 116146571. The reversal of 116146561 is 165641611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58614336 + 57532225 = 7656^2 + 7585^2 .

It is a cyclic number.

It is not a de Polignac number, because 116146561 - 2¹⁷ = 116015489 is a prime.

It is not a weakly prime, because it can be changed into another prime (116146571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58073280 + 58073281.

It is an arithmetic number, because the mean of its divisors is an integer number (58073281).

Almost surely, 2^116146561 is an apocalyptic number.

It is an amenable number.

116146561 is a deficient number, since it is larger than the sum of its proper divisors (1).

116146561 is an equidigital number, since it uses as much as digits as its factorization.

116146561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 31.

The square root of 116146561 is about 10777.1313901242. The cubic root of 116146561 is about 487.9052055974.

The spelling of 116146561 in words is "one hundred sixteen million, one hundred forty-six thousand, five hundred sixty-one".