17139054109 has 2 divisors, whose sum is σ = 17139054110. Its totient is φ = 17139054108.

The previous prime is 17139054089. The next prime is 17139054131. The reversal of 17139054109 is 90145093171.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13903947225 + 3235106884 = 117915^2 + 56878^2 .

It is a cyclic number.

It is not a de Polignac number, because 17139054109 - 2²³ = 17130665501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17139054199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8569527054 + 8569527055.

It is an arithmetic number, because the mean of its divisors is an integer number (8569527055).

Almost surely, 2^17139054109 is an apocalyptic number.

It is an amenable number.

17139054109 is a deficient number, since it is larger than the sum of its proper divisors (1).

17139054109 is an equidigital number, since it uses as much as digits as its factorization.

17139054109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 40.

The spelling of 17139054109 in words is "seventeen billion, one hundred thirty-nine million, fifty-four thousand, one hundred nine".