168146815 has 16 divisors (see below), whose sum is σ = 205410816. Its totient is φ = 132109600.

The previous prime is 168146809. The next prime is 168146819. The reversal of 168146815 is 518641861.

It is not a de Polignac number, because 168146815 - 2³ = 168146807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168146819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109644 + ... + 111166.

It is an arithmetic number, because the mean of its divisors is an integer number (12838176).

Almost surely, 2^168146815 is an apocalyptic number.

168146815 is a deficient number, since it is larger than the sum of its proper divisors (37264001).

168146815 is a wasteful number, since it uses less digits than its factorization.

168146815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1910.

The product of its digits is 46080, while the sum is 40.

The square root of 168146815 is about 12967.1436716032. The cubic root of 168146815 is about 551.9455231805.

The spelling of 168146815 in words is "one hundred sixty-eight million, one hundred forty-six thousand, eight hundred fifteen".