171850113 has 8 divisors (see below), whose sum is σ = 254592800. Its totient is φ = 114566724.

The previous prime is 171850087. The next prime is 171850121. The reversal of 171850113 is 311058171.

It is a de Polignac number, because none of the positive numbers 2^k-171850113 is a prime.

It is a super-2 number, since 2×171850113² = 59064922676225538, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 6364819 = 171850113 / (1 + 7 + 1 + 8 + 5 + 0 + 1 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (171850153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3182383 + ... + 3182436.

It is an arithmetic number, because the mean of its divisors is an integer number (31824100).

Almost surely, 2^171850113 is an apocalyptic number.

It is an amenable number.

171850113 is a deficient number, since it is larger than the sum of its proper divisors (82742687).

171850113 is an equidigital number, since it uses as much as digits as its factorization.

171850113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6364828 (or 6364822 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 27.

The square root of 171850113 is about 13109.1614148274. The cubic root of 171850113 is about 555.9681858597.

The spelling of 171850113 in words is "one hundred seventy-one million, eight hundred fifty thousand, one hundred thirteen".