109018517 has 2 divisors, whose sum is σ = 109018518. Its totient is φ = 109018516.

The previous prime is 109018513. The next prime is 109018531. The reversal of 109018517 is 715810901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108972721 + 45796 = 10439^2 + 214^2 .

It is a cyclic number.

It is not a de Polignac number, because 109018517 - 2² = 109018513 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109018513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54509258 + 54509259.

It is an arithmetic number, because the mean of its divisors is an integer number (54509259).

Almost surely, 2^109018517 is an apocalyptic number.

It is an amenable number.

109018517 is a deficient number, since it is larger than the sum of its proper divisors (1).

109018517 is an equidigital number, since it uses as much as digits as its factorization.

109018517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 32.

The square root of 109018517 is about 10441.1932747172. The cubic root of 109018517 is about 477.7126664330.

The spelling of 109018517 in words is "one hundred nine million, eighteen thousand, five hundred seventeen".