17122156149 has 32 divisors (see below), whose sum is σ = 26887875840. Its totient is φ = 9487037952.

The previous prime is 17122156099. The next prime is 17122156193. The reversal of 17122156149 is 94165122171.

It is a happy number.

It is not a de Polignac number, because 17122156149 - 2⁷ = 17122156021 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17122154149) 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 in 31 ways as a sum of consecutive naturals, for example, 190057 + ... + 265265.

It is an arithmetic number, because the mean of its divisors is an integer number (840246120).

Almost surely, 2^17122156149 is an apocalyptic number.

It is an amenable number.

17122156149 is a deficient number, since it is larger than the sum of its proper divisors (9765719691).

17122156149 is a wasteful number, since it uses less digits than its factorization.

17122156149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75549.

The product of its digits is 30240, while the sum is 39.

The spelling of 17122156149 in words is "seventeen billion, one hundred twenty-two million, one hundred fifty-six thousand, one hundred forty-nine".