167243081 has 2 divisors, whose sum is σ = 167243082. Its totient is φ = 167243080.

The previous prime is 167243017. The next prime is 167243147. The reversal of 167243081 is 180342761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127351225 + 39891856 = 11285^2 + 6316^2 .

It is a cyclic number.

It is not a de Polignac number, because 167243081 - 2⁶ = 167243017 is a prime.

It is a super-2 number, since 2×167243081² = 55940496284745122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (167243581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83621540 + 83621541.

It is an arithmetic number, because the mean of its divisors is an integer number (83621541).

Almost surely, 2^167243081 is an apocalyptic number.

It is an amenable number.

167243081 is a deficient number, since it is larger than the sum of its proper divisors (1).

167243081 is an equidigital number, since it uses as much as digits as its factorization.

167243081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 167243081 is about 12932.2496496163. The cubic root of 167243081 is about 550.9549042312.

The spelling of 167243081 in words is "one hundred sixty-seven million, two hundred forty-three thousand, eighty-one".