167078081 has 2 divisors, whose sum is σ = 167078082. Its totient is φ = 167078080.

The previous prime is 167078069. The next prime is 167078083. The reversal of 167078081 is 180870761.

167078081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166823056 + 255025 = 12916^2 + 505^2 .

It is an emirp because it is prime and its reverse (180870761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 167078081 - 2⁶ = 167078017 is a prime.

It is a super-2 number, since 2×167078081² = 55830170301285122, which contains 22 as substring.

Together with 167078083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (167078083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83539040 + 83539041.

It is an arithmetic number, because the mean of its divisors is an integer number (83539041).

Almost surely, 2^167078081 is an apocalyptic number.

It is an amenable number.

167078081 is a deficient number, since it is larger than the sum of its proper divisors (1).

167078081 is an equidigital number, since it uses as much as digits as its factorization.

167078081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 38.

The square root of 167078081 is about 12925.8686748706. The cubic root of 167078081 is about 550.7736561318.

The spelling of 167078081 in words is "one hundred sixty-seven million, seventy-eight thousand, eighty-one".