171119999 has 2 divisors, whose sum is σ = 171120000. Its totient is φ = 171119998.

The previous prime is 171119983. The next prime is 171120007. The reversal of 171119999 is 999911171.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 171119999 - 2⁴ = 171119983 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (171119099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85559999 + 85560000.

It is an arithmetic number, because the mean of its divisors is an integer number (85560000).

Almost surely, 2^171119999 is an apocalyptic number.

171119999 is a deficient number, since it is larger than the sum of its proper divisors (1).

171119999 is an equidigital number, since it uses as much as digits as its factorization.

171119999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45927, while the sum is 47.

The square root of 171119999 is about 13081.2843023917. The cubic root of 171119999 is about 555.1797150868.

The spelling of 171119999 in words is "one hundred seventy-one million, one hundred nineteen thousand, nine hundred ninety-nine".