168076919 has 4 divisors (see below), whose sum is σ = 168216696. Its totient is φ = 167937144.

The previous prime is 168076913. The next prime is 168076921. The reversal of 168076919 is 919670861.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 168076919 - 2²⁰ = 167028343 is a prime.

It is a super-2 number, since 2×168076919² = 56499701401065122, 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 (168076913) 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 3 ways as a sum of consecutive naturals, for example, 68069 + ... + 70494.

It is an arithmetic number, because the mean of its divisors is an integer number (42054174).

Almost surely, 2^168076919 is an apocalyptic number.

168076919 is a deficient number, since it is larger than the sum of its proper divisors (139777).

168076919 is a wasteful number, since it uses less digits than its factorization.

168076919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139776.

The product of its (nonzero) digits is 163296, while the sum is 47.

The square root of 168076919 is about 12964.4482721017. The cubic root of 168076919 is about 551.8690342086.

The spelling of 168076919 in words is "one hundred sixty-eight million, seventy-six thousand, nine hundred nineteen".