17100020149 has 2 divisors, whose sum is σ = 17100020150. Its totient is φ = 17100020148.

The previous prime is 17100020089. The next prime is 17100020177. The reversal of 17100020149 is 94102000171.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14948730225 + 2151289924 = 122265^2 + 46382^2 .

It is a cyclic number.

It is not a de Polignac number, because 17100020149 - 2²⁷ = 16965802421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17100420149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8550010074 + 8550010075.

It is an arithmetic number, because the mean of its divisors is an integer number (8550010075).

Almost surely, 2^17100020149 is an apocalyptic number.

It is an amenable number.

17100020149 is a deficient number, since it is larger than the sum of its proper divisors (1).

17100020149 is an equidigital number, since it uses as much as digits as its factorization.

17100020149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 25.

The spelling of 17100020149 in words is "seventeen billion, one hundred million, twenty thousand, one hundred forty-nine".