667170113 has 2 divisors, whose sum is σ = 667170114. Its totient is φ = 667170112.

The previous prime is 667170071. The next prime is 667170137. The reversal of 667170113 is 311071766.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 666052864 + 1117249 = 25808^2 + 1057^2 .

It is a cyclic number.

It is not a de Polignac number, because 667170113 - 2¹⁶ = 667104577 is a prime.

It is equal to p_34639241 and since 667170113 and 34639241 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 667170113.

It is not a weakly prime, because it can be changed into another prime (667172113) 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, 333585056 + 333585057.

It is an arithmetic number, because the mean of its divisors is an integer number (333585057).

Almost surely, 2^667170113 is an apocalyptic number.

It is an amenable number.

667170113 is a deficient number, since it is larger than the sum of its proper divisors (1).

667170113 is an equidigital number, since it uses as much as digits as its factorization.

667170113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 667170113 is about 25829.6363311604. The cubic root of 667170113 is about 873.8003098464.

The spelling of 667170113 in words is "six hundred sixty-seven million, one hundred seventy thousand, one hundred thirteen".