668134 has 16 divisors (see below), whose sum is σ = 1088208. Its totient is φ = 306432.

The previous prime is 668111. The next prime is 668141. The reversal of 668134 is 431866.

668134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1234 + ... + 1690.

It is an arithmetic number, because the mean of its divisors is an integer number (68013).

2⁶⁶⁸¹³⁴ is an apocalyptic number.

668134 is a deficient number, since it is larger than the sum of its proper divisors (420074).

668134 is a wasteful number, since it uses less digits than its factorization.

668134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519.

The product of its digits is 3456, while the sum is 28.

The square root of 668134 is about 817.3946415288. The cubic root of 668134 is about 87.4220911959.

It can be divided in two parts, 6 and 68134, that multiplied together give a palindrome (408804).

The spelling of 668134 in words is "six hundred sixty-eight thousand, one hundred thirty-four".