166327243 has 2 divisors, whose sum is σ = 166327244. Its totient is φ = 166327242.

The previous prime is 166327223. The next prime is 166327253. The reversal of 166327243 is 342723661.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166327243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166327199 and 166327208.

It is not a weakly prime, because it can be changed into another prime (166327223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83163621 + 83163622.

It is an arithmetic number, because the mean of its divisors is an integer number (83163622).

Almost surely, 2^166327243 is an apocalyptic number.

166327243 is a deficient number, since it is larger than the sum of its proper divisors (1).

166327243 is an equidigital number, since it uses as much as digits as its factorization.

166327243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 34.

The square root of 166327243 is about 12896.7919654463. The cubic root of 166327243 is about 549.9473701706.

The spelling of 166327243 in words is "one hundred sixty-six million, three hundred twenty-seven thousand, two hundred forty-three".