190000916117 has 2 divisors, whose sum is σ = 190000916118. Its totient is φ = 190000916116.

The previous prime is 190000916093. The next prime is 190000916129. The reversal of 190000916117 is 711619000091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 167030785636 + 22970130481 = 408694^2 + 151559^2 .

It is an emirp because it is prime and its reverse (711619000091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 190000916117 - 2²⁶ = 189933807253 is a prime.

It is a super-2 number, since 2×190000916117² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190000916717) 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, 95000458058 + 95000458059.

It is an arithmetic number, because the mean of its divisors is an integer number (95000458059).

Almost surely, 2^190000916117 is an apocalyptic number.

It is an amenable number.

190000916117 is a deficient number, since it is larger than the sum of its proper divisors (1).

190000916117 is an equidigital number, since it uses as much as digits as its factorization.

190000916117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402, while the sum is 35.

The spelling of 190000916117 in words is "one hundred ninety billion, nine hundred sixteen thousand, one hundred seventeen".