166145113 has 2 divisors, whose sum is σ = 166145114. Its totient is φ = 166145112.

The previous prime is 166145107. The next prime is 166145129. The reversal of 166145113 is 311541661.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102576384 + 63568729 = 10128^2 + 7973^2 .

It is a cyclic number.

It is not a de Polignac number, because 166145113 - 2⁵ = 166145081 is a prime.

It is not a weakly prime, because it can be changed into another prime (166145713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83072556 + 83072557.

It is an arithmetic number, because the mean of its divisors is an integer number (83072557).

Almost surely, 2^166145113 is an apocalyptic number.

It is an amenable number.

166145113 is a deficient number, since it is larger than the sum of its proper divisors (1).

166145113 is an equidigital number, since it uses as much as digits as its factorization.

166145113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 28.

The square root of 166145113 is about 12889.7289731010. The cubic root of 166145113 is about 549.7465642284.

Adding to 166145113 its reverse (311541661), we get a palindrome (477686774).

The spelling of 166145113 in words is "one hundred sixty-six million, one hundred forty-five thousand, one hundred thirteen".