108743561 has 2 divisors, whose sum is σ = 108743562. Its totient is φ = 108743560.

The previous prime is 108743527. The next prime is 108743573. The reversal of 108743561 is 165347801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58049161 + 50694400 = 7619^2 + 7120^2 .

It is a cyclic number.

It is not a de Polignac number, because 108743561 - 2²² = 104549257 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (108743161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54371780 + 54371781.

It is an arithmetic number, because the mean of its divisors is an integer number (54371781).

Almost surely, 2^108743561 is an apocalyptic number.

It is an amenable number.

108743561 is a deficient number, since it is larger than the sum of its proper divisors (1).

108743561 is an equidigital number, since it uses as much as digits as its factorization.

108743561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 108743561 is about 10428.0180763173. The cubic root of 108743561 is about 477.3107147017.

The spelling of 108743561 in words is "one hundred eight million, seven hundred forty-three thousand, five hundred sixty-one".