166457 has 2 divisors, whose sum is σ = 166458. Its totient is φ = 166456.

The previous prime is 166429. The next prime is 166471. The reversal of 166457 is 754661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116281 + 50176 = 341^2 + 224^2 .

It is a cyclic number.

It is not a de Polignac number, because 166457 - 2⁶ = 166393 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (166417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83228 + 83229.

It is an arithmetic number, because the mean of its divisors is an integer number (83229).

2¹⁶⁶⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

166457 is a deficient number, since it is larger than the sum of its proper divisors (1).

166457 is an equidigital number, since it uses as much as digits as its factorization.

166457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5040, while the sum is 29.

The square root of 166457 is about 407.9914214784. The cubic root of 166457 is about 55.0090343286.

The spelling of 166457 in words is "one hundred sixty-six thousand, four hundred fifty-seven".