667141 has 2 divisors, whose sum is σ = 667142. Its totient is φ = 667140.

The previous prime is 667129. The next prime is 667171. The reversal of 667141 is 141766.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 664225 + 2916 = 815^2 + 54^2 .

It is a cyclic number.

It is not a de Polignac number, because 667141 - 2⁷ = 667013 is a prime.

It is a super-2 number, since 2×667141² = 890154227762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (667171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333570 + 333571.

It is an arithmetic number, because the mean of its divisors is an integer number (333571).

2⁶⁶⁷¹⁴¹ is an apocalyptic number.

It is an amenable number.

667141 is a deficient number, since it is larger than the sum of its proper divisors (1).

667141 is an equidigital number, since it uses as much as digits as its factorization.

667141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 25.

The square root of 667141 is about 816.7869979377. The cubic root of 667141 is about 87.3787599785.

It can be divided in two parts, 667 and 141, that added together give a palindrome (808).

The spelling of 667141 in words is "six hundred sixty-seven thousand, one hundred forty-one".