110618561 has 2 divisors, whose sum is σ = 110618562. Its totient is φ = 110618560.

The previous prime is 110618531. The next prime is 110618581. The reversal of 110618561 is 165816011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103225600 + 7392961 = 10160^2 + 2719^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110618561 is a prime.

It is not a weakly prime, because it can be changed into another prime (110618531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55309280 + 55309281.

It is an arithmetic number, because the mean of its divisors is an integer number (55309281).

Almost surely, 2^110618561 is an apocalyptic number.

It is an amenable number.

110618561 is a deficient number, since it is larger than the sum of its proper divisors (1).

110618561 is an equidigital number, since it uses as much as digits as its factorization.

110618561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 110618561 is about 10517.5358806139. The cubic root of 110618561 is about 480.0384242967.

The spelling of 110618561 in words is "one hundred ten million, six hundred eighteen thousand, five hundred sixty-one".