168073871 has 6 divisors (see below), whose sum is σ = 195514560. Its totient is φ = 144063276.

The previous prime is 168073861. The next prime is 168073877. The reversal of 168073871 is 178370861.

It is a de Polignac number, because none of the positive numbers 2^k-168073871 is a prime.

It is a super-2 number, since 2×168073871² = 56497652225849282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168073877) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1714991 + ... + 1715088.

It is an arithmetic number, because the mean of its divisors is an integer number (32585760).

Almost surely, 2^168073871 is an apocalyptic number.

168073871 is a deficient number, since it is larger than the sum of its proper divisors (27440689).

168073871 is an equidigital number, since it uses as much as digits as its factorization.

168073871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3430093 (or 3430086 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 41.

The square root of 168073871 is about 12964.3307193237. The cubic root of 168073871 is about 551.8656982221.

The spelling of 168073871 in words is "one hundred sixty-eight million, seventy-three thousand, eight hundred seventy-one".