166757147 has 2 divisors, whose sum is σ = 166757148. Its totient is φ = 166757146.

The previous prime is 166757137. The next prime is 166757159. The reversal of 166757147 is 741757661.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166757147 - 2²² = 162562843 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 166757098 and 166757107.

It is not a weakly prime, because it can be changed into another prime (166757117) 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 as a sum of consecutive naturals, namely, 83378573 + 83378574.

It is an arithmetic number, because the mean of its divisors is an integer number (83378574).

Almost surely, 2^166757147 is an apocalyptic number.

166757147 is a deficient number, since it is larger than the sum of its proper divisors (1).

166757147 is an equidigital number, since it uses as much as digits as its factorization.

166757147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 246960, while the sum is 44.

The square root of 166757147 is about 12913.4483001250. The cubic root of 166757147 is about 550.4207766260.

The spelling of 166757147 in words is "one hundred sixty-six million, seven hundred fifty-seven thousand, one hundred forty-seven".