17145000109 has 2 divisors, whose sum is σ = 17145000110. Its totient is φ = 17145000108.

The previous prime is 17145000107. The next prime is 17145000143. The reversal of 17145000109 is 90100054171.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14295789225 + 2849210884 = 119565^2 + 53378^2 .

It is a cyclic number.

It is not a de Polignac number, because 17145000109 - 2¹ = 17145000107 is a prime.

It is a super-2 number, since 2×17145000109² (a number of 21 digits) contains 22 as substring.

Together with 17145000107, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17145000107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8572500054 + 8572500055.

It is an arithmetic number, because the mean of its divisors is an integer number (8572500055).

Almost surely, 2^17145000109 is an apocalyptic number.

It is an amenable number.

17145000109 is a deficient number, since it is larger than the sum of its proper divisors (1).

17145000109 is an equidigital number, since it uses as much as digits as its factorization.

17145000109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 28.

The spelling of 17145000109 in words is "seventeen billion, one hundred forty-five million, one hundred nine", and thus it is an aban number.